1 | # $Id: import_cif.tcl 377 2009-12-04 23:05:09Z toby $ |
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2 | |
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3 | #------------------------------------------------- |
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4 | # define info used in addcmds.tcl |
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5 | set description "Crystallographic Information File (CIF)" |
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6 | set extensions .cif |
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7 | set procname ReadCIFFile |
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8 | #------------------------------------------------- |
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9 | |
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10 | proc ReadCIFFile {filename} { |
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11 | global expgui |
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12 | set fp [open $filename r] |
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13 | pleasewait "Reading CIF file" |
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14 | set blocks [ParseCIF $filename] |
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15 | if {$blocks == ""} { |
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16 | donewait |
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17 | MyMessageBox -parent . -type ok -icon warning \ |
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18 | -message "Note: no valid CIF blocks were read from file $filename" |
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19 | return |
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20 | } |
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21 | set allblocks {} |
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22 | set coordblocks {} |
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23 | # search each block for coordinate |
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24 | for {set i 1} {$i <= $blocks} {incr i} { |
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25 | lappend allblocks $i |
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26 | global block$i |
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27 | set flag 1 |
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28 | foreach id {_atom_site_fract_x _atom_site_fract_y _atom_site_fract_z} { |
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29 | if {[array name block$i $id] == ""} {set flag 0} |
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30 | } |
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31 | if $flag {lappend coordblocks $i} |
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32 | } |
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33 | donewait |
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34 | if {$coordblocks == ""} { |
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35 | MyMessageBox -parent . -type ok -icon warning \ |
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36 | -message "Note: CIF $filename contains no coordinates" |
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37 | return |
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38 | } |
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39 | set expgui(choose) [lindex $coordblocks 0] |
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40 | # there is more than one appropriate block |
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41 | if {[llength $coordblocks] > 1} { |
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42 | catch {destroy .choose} |
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43 | toplevel .choose |
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44 | wm title .choose "Choose CIF Block" |
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45 | bind .choose <Key-F1> "MakeWWWHelp expguierr.html ChooseCIF" |
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46 | grid [label .choose.0 -text \ |
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47 | "More than one block in CIF $filename\ncontains coordinates.\nSelect the block to use" \ |
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48 | ] -row 0 -column 0 -columnspan 2 |
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49 | set row 0 |
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50 | foreach i $coordblocks { |
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51 | incr row |
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52 | set name "" |
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53 | catch {set name [set block${i}(data_)]} |
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54 | grid [radiobutton .choose.$row -value $i \ |
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55 | -text "block $i ($name)" -variable expgui(choose)] \ |
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56 | -row $row -column 0 -sticky w |
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57 | } |
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58 | grid [button .choose.browse -text CIF\nBrowser -command \ |
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59 | "BrowseCIF [list $allblocks] [list $coordblocks] .choose.cif" \ |
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60 | ] -row 1 -rowspan $row -column 1 |
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61 | grid [button .choose.ok -text OK -command "destroy .choose"] \ |
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62 | -row [incr row] -column 0 -sticky w |
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63 | grid [button .choose.help -text Help -bg yellow \ |
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64 | -command "MakeWWWHelp expguierr.html ChooseCIF"] \ |
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65 | -column 1 -row $row -sticky e |
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66 | putontop .choose |
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67 | tkwait window .choose |
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68 | # fix grab... |
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69 | afterputontop |
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70 | } |
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71 | |
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72 | set i $expgui(choose) |
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73 | # get the space group |
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74 | set spg {} |
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75 | set msg {} |
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76 | catch { |
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77 | set spg [set block${i}(_symmetry_space_group_name_h-m)] |
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78 | regsub -all {'} $spg {} spg |
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79 | # see if this space group exists in the table |
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80 | set fp [open [file join $expgui(scriptdir) spacegrp.ref] r] |
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81 | while {[gets $fp line] >= 0} { |
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82 | if {[string trim $spg] == [lindex $line 8]} { |
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83 | close $fp |
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84 | break |
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85 | set fp {} |
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86 | } |
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87 | } |
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88 | if {$fp != ""} { |
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89 | close $fp |
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90 | set msg "Warning: the Space Group ($spg) may not be correctly specified for GSAS" |
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91 | } |
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92 | } |
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93 | set cell {} |
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94 | foreach var {_cell_length_a _cell_length_b _cell_length_c \ |
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95 | _cell_angle_alpha _cell_angle_beta _cell_angle_gamma} { |
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96 | # leave blank any unspecified data items |
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97 | set val {} |
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98 | catch {set val [set block${i}($var)]} |
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99 | lappend cell [lindex [ParseSU $val] 0] |
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100 | } |
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101 | |
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102 | set atomlist {} |
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103 | set lbllist {} |
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104 | catch { |
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105 | set lbllist [set block${i}(_atom_site_label)] |
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106 | } |
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107 | set uisolist {} |
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108 | set Uconv 1 |
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109 | catch { |
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110 | set uisolist [set block${i}(_atom_site_u_iso_or_equiv)] |
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111 | } |
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112 | if {$uisolist == ""} { |
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113 | catch { |
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114 | set uisolist [set block${i}(_atom_site_b_iso_or_equiv)] |
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115 | set Uconv [expr 1/(8*3.14159*3.14159)] |
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116 | } |
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117 | } |
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118 | set occlist {} |
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119 | catch { |
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120 | set occlist [set block${i}(_atom_site_occupancy)] |
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121 | } |
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122 | set typelist {} |
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123 | catch { |
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124 | set typelist [set block${i}(_atom_site_type_symbol)] |
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125 | } |
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126 | foreach x [set block${i}(_atom_site_fract_x)] \ |
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127 | y [set block${i}(_atom_site_fract_y)] \ |
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128 | z [set block${i}(_atom_site_fract_z)] \ |
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129 | lbl $lbllist uiso $uisolist occ $occlist type $typelist { |
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130 | if {$uiso == ""} {set uiso 0.025} |
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131 | # should not be any quotes, but remove them, if there are |
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132 | foreach var {lbl type} { |
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133 | foreach char {' \"} { |
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134 | set q {\\} |
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135 | append q $char |
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136 | set hidden [regsub -all $q [set $var] \200 $var] |
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137 | if {[string index [set $var] 0] == $char} { |
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138 | regsub -all $char [set $var] {} $var |
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139 | } |
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140 | if {$hidden} {regsub -all \200 [set $var] $char $var} |
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141 | } |
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142 | } |
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143 | # CIF specifies types as Cu2+; GSAS uses Cu+2 |
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144 | if {[regexp {([A-Za-z]+)([1-9])([+-])} $type junk elem sign val]} { |
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145 | set type ${elem}${val}$sign |
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146 | } |
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147 | # if type is missing, attempt to parse an element in the label |
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148 | if {$type == "" && $lbl != ""} { |
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149 | regexp {[A-Za-z][A-Za-z]?} $lbl type |
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150 | } |
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151 | # get rid of standard uncertainies |
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152 | foreach var {x y z occ uiso} { |
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153 | catch { |
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154 | set $var [lindex [ParseSU [set $var]] 0] |
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155 | } |
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156 | } |
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157 | # convert Biso to Uiso (if needed) |
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158 | if {$Uconv != 1} { |
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159 | catch {set $uiso [expr $Uconv*$uiso]} |
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160 | } |
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161 | lappend atomlist [list $lbl $x $y $z $type $occ $uiso] |
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162 | } |
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163 | |
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164 | # clean up -- get rid of the CIF arrays |
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165 | for {set i 1} {$i <= $blocks} {incr i} { |
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166 | unset block$i |
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167 | } |
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168 | return "[list $spg] [list $cell] [list $atomlist] [list $msg]" |
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169 | } |
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170 | |
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171 | # ParseCIF reads and parses a CIF file putting the contents of |
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172 | # each block into arrays block1, block2,... in the caller's level |
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173 | # the name of the block is saved as blockN(data_) |
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174 | # data names and items are saved as blockN(_data_name) = {data item} |
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175 | # data items are not reformatted, thus quotes, semicolons & newlines |
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176 | # are included in the data item string |
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177 | # CIF names are converted to lower case |
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178 | # for looped data names, the data items are included in a list: |
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179 | # blockN(_cif_name) = {item1 "item2 with spaces" item3 ...} |
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180 | # the contents of each loop are saved as blockN(loop_M) |
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181 | # |
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182 | # The proc returns the number of blocks that have been read or a |
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183 | # null string if the file cannot be opened |
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184 | # |
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185 | # This parser does some error checking [errors are reported in blockN(error)] |
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186 | # but the parser could get confused if the CIF has invalid syntax |
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187 | # |
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188 | proc ParseCIF {filename} { |
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189 | if [catch { |
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190 | set fp [open $filename r] |
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191 | }] {return ""} |
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192 | |
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193 | set blocks 0 |
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194 | set EOF 1 |
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195 | set line {} |
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196 | set dataname {} |
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197 | # line counter (for error messages) |
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198 | set linenum 0 |
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199 | # this flags where we are w/r a loop_ |
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200 | # -1 not in a loop |
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201 | # 0 reading a loop header (data names) |
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202 | # 1 reading the data items in a loop |
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203 | set loopflag -1 |
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204 | set loopnum -1 |
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205 | # loop over tokens |
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206 | while {$EOF} { |
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207 | # read the next line, unless we have a holdover from the previous |
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208 | if {[string length [string trim $line]] <= 0} { |
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209 | incr linenum |
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210 | if {[gets $fp line] < 0} {set EOF 0} |
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211 | } |
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212 | # flag if the string \' has been replaced |
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213 | set hidden 0 |
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214 | set trimline [string trim $line] |
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215 | set firstchar [string index $trimline 0] |
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216 | |
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217 | if {[string length $trimline] <= 0} { |
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218 | # the line is blank |
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219 | set line {} |
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220 | continue |
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221 | } |
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222 | |
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223 | if {$firstchar == "#"} { |
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224 | # this is a comment |
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225 | set line {} |
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226 | continue |
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227 | } |
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228 | |
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229 | if {[string tolower [string range $trimline 0 4]] == "data_"} { |
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230 | # this is the beginning of a data block |
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231 | incr blocks |
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232 | # are there other tokens on this line? |
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233 | if {[set pos [string first { } $trimline]] == -1} { |
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234 | set blockname [string range $trimline 5 end] |
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235 | set line {} |
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236 | } else { |
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237 | set blockname [string range $trimline 5 [expr $pos-1]] |
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238 | set line [string range $trimline $pos end] |
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239 | } |
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240 | global block$blocks |
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241 | catch {unset block$blocks} |
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242 | set block${blocks}(data_) $blockname |
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243 | set loopnum -1 |
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244 | |
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245 | if {$line == ""} continue |
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246 | if {$dataname != ""} { |
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247 | # this is an error -- data_ block where a data item is expected |
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248 | append block${blocks}(errors) "No data item was found for $dataname near line $linenum\n" |
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249 | set dataname {} |
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250 | } |
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251 | } |
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252 | |
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253 | if {$firstchar == "_"} { |
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254 | # this is a cif data name |
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255 | if {$dataname != ""} { |
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256 | # this is an error -- data name where a data item is expected |
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257 | append block${blocks}(errors) "No data item was found for $dataname near line $linenum\n" |
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258 | } |
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259 | # parse it out & convert it to lower case |
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260 | if {[set pos [string first { } $trimline]] == -1} { |
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261 | # nothing else is on this line |
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262 | set dataname [string tolower $trimline] |
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263 | set line {} |
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264 | } else { |
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265 | # There other tokens on this line |
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266 | set dataname [string tolower [string range $trimline 0 [expr $pos-1]]] |
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267 | set line [string tolower [string range $trimline $pos end]] |
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268 | } |
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269 | |
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270 | if {$loopflag == 0} { |
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271 | # in a loop header, save the names in the loop list |
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272 | lappend looplist $dataname |
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273 | set block${blocks}(loop_${loopnum}) $looplist |
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274 | # clear the array element for the data item |
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275 | # -- should not be needed for a valid CIF but if a name is used |
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276 | # -- twice in the same block, want to wipe out the 1st data |
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277 | catch { |
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278 | if {[set block${blocks}($dataname)] != ""} { |
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279 | # this is an error -- repeated data name |
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280 | append block${blocks}(errors) \ |
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281 | "Data item $dataname is repeated near line $linenum\n" |
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282 | } |
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283 | set block${blocks}($dataname) {} |
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284 | } |
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285 | set dataname {} |
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286 | } elseif {$loopflag > 0} { |
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287 | # in a loop body, so the loop is over |
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288 | set loopflag -1 |
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289 | } |
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290 | continue |
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291 | } |
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292 | |
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293 | if {[string tolower [string range $trimline 0 4]] == "loop_"} { |
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294 | set loopflag 0 |
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295 | incr loopnum |
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296 | set looplist {} |
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297 | set block${blocks}(loop_${loopnum}) {} |
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298 | # save any other tokens on this line |
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299 | set line [string range $trimline 5 end] |
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300 | continue |
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301 | } |
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302 | |
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303 | # keywords not matched, must be some type of data item |
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304 | set item {} |
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305 | |
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306 | if {[string index $line 0] == ";"} { |
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307 | # multiline entry with semicolon termination |
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308 | set item $line |
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309 | # read lines until we get a naked semicolon |
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310 | while {$EOF} { |
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311 | incr linenum |
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312 | if {[gets $fp line] < 0} {set EOF 0} |
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313 | if {[string index $line 0] == ";"} { |
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314 | append item "\n;" |
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315 | # make sure the line has a blank in front, so |
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316 | # a semicolon in col 2 is not treated as a quote character |
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317 | set line " [string range $line 1 end]" |
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318 | break |
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319 | } |
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320 | } |
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321 | if {[string trim $line] == ""} {set line ""} |
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322 | } elseif {$firstchar == {"}} { |
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323 | # a quoted string |
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324 | # hide any \" sequences in a non-ASCII character (\201) |
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325 | set hidden [regsub -all {\\"} $trimline \201 trimline] |
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326 | # parse out the quoted string, save the remainder |
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327 | if {![regexp {("[^"]*")(.*)} $trimline junk item line]} { |
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328 | # this is an error -- no end-quote was found |
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329 | set item $line |
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330 | set line {} |
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331 | append block${blocks}(errors) "The quoted string on line $linenum does not have a close quote ([string trim $item])\n" |
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332 | } |
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333 | } elseif {$firstchar == {'}} { |
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334 | # a quoted string |
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335 | # hide any \' sequences in a non-ASCII character (\200) |
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336 | set hidden [regsub -all {\\'} $trimline \200 trimline] |
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337 | # parse out the quoted string, save the remainder |
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338 | if {![regexp {('[^']*')(.*)} $trimline junk item line]} { |
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339 | # this is an error -- no end-quote was found |
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340 | set item $line |
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341 | set line {} |
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342 | append block${blocks}(errors) "The quoted string on line $linenum does not have a close quote ([string trim $item])\n" |
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343 | } |
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344 | } else { |
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345 | # must be a single space-delimited value |
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346 | set pos [string first { } $trimline] |
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347 | if {$pos < 0} { |
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348 | # and the only thing left on the line |
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349 | set item $trimline |
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350 | set line {} |
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351 | } else { |
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352 | # save the rest of the line |
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353 | set line [string range $trimline $pos end] |
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354 | incr pos -1 |
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355 | set item [string range $trimline 0 $pos] |
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356 | } |
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357 | } |
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358 | |
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359 | # a data item has been read |
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360 | # fix the hidden characters, if any |
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361 | if $hidden { |
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362 | regsub -all \200 $item {\\'} item |
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363 | regsub -all \201 $item {\\"} item |
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364 | } |
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365 | |
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366 | # store the data item |
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367 | if {$loopflag >= 0} { |
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368 | # if in a loop, increment the loop element counter to select the |
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369 | # appropriate array element |
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370 | incr loopflag |
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371 | set i [expr ($loopflag - 1) % [llength $looplist]] |
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372 | lappend block${blocks}([lindex $looplist $i]) $item |
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373 | } elseif {$dataname == ""} { |
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374 | # this is an error -- a data item where we do not expect one |
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375 | append block${blocks}(errors) "The string \"$item\" on line $linenum was unexpected\n" |
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376 | } else { |
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377 | catch { |
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378 | if {[set block${blocks}($dataname)] != ""} { |
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379 | # this is an error -- repeated data name |
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380 | append block${blocks}(errors) \ |
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381 | "Data item $dataname is repeated near line $linenum\n" |
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382 | } |
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383 | } |
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384 | set block${blocks}($dataname) $item |
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385 | set dataname "" |
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386 | } |
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387 | } |
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388 | close $fp |
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389 | return $blocks |
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390 | } |
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391 | |
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392 | # this proc creates a hierarchical CIF browser |
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393 | # note that the BWidget package is required |
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394 | proc BrowseCIF {blocklist "selected {}" "frame .cif"} { |
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395 | |
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396 | if [catch {package require BWidget}] { |
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397 | tk_dialog $frame {No BWidget} \ |
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398 | "Sorry, the CIF Browser requires the BWidget package" \ |
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399 | warning 0 Continue |
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400 | return |
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401 | } |
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402 | if {$selected == ""} {set selected $blocklist} |
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403 | catch {destroy $frame} |
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404 | toplevel $frame |
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405 | wm title $frame "CIF Browser" |
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406 | |
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407 | set pw [PanedWindow $frame.pw -side top] |
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408 | grid $pw -sticky news -column 0 -row 0 |
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409 | grid columnconfigure $frame 0 -weight 1 |
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410 | grid rowconfigure $frame 0 -minsize 250 -weight 1 |
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411 | |
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412 | # create a left hand side pane for the hierarchical tree |
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413 | set pane [$pw add -weight 1] |
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414 | set sw [ScrolledWindow $pane.lf \ |
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415 | -relief sunken -borderwidth 2] |
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416 | set tree [Tree $sw.tree \ |
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417 | -relief flat -borderwidth 0 -width 15 -highlightthickness 0 \ |
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418 | -redraw 1] |
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419 | grid $sw |
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420 | grid $sw -sticky news -column 0 -row 0 |
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421 | grid columnconfigure $pane 0 -minsize 275 -weight 1 |
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422 | grid rowconfigure $pane 0 -weight 1 |
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423 | $sw setwidget $tree |
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424 | |
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425 | # create a right hand side pane to show the value |
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426 | set pane [$pw add -weight 1] |
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427 | set sw [ScrolledWindow $pane.sw \ |
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428 | -relief sunken -borderwidth 2] |
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429 | pack $sw -fill both -expand yes -side bottom |
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430 | set lb [ScrollableFrame::create $sw.lb -width 250] |
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431 | $sw setwidget $lb |
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432 | |
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433 | set num 0 |
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434 | foreach n $blocklist { |
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435 | global block$n |
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436 | # make a list of data names in loops |
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437 | set looplist {} |
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438 | foreach loop [array names block$n loop_*] { |
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439 | eval lappend looplist [set block${n}($loop)] |
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440 | } |
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441 | # put the block name |
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442 | set blockname [set block${n}(data_)] |
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443 | set open 0 |
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444 | if {[lsearch $selected $n] != -1} {set open 1} |
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445 | $tree insert end root block$n -text "_data_$blockname" \ |
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446 | -open $open -image [Bitmap::get copy] |
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447 | # loop over the names in each block |
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448 | foreach name [array names block$n _*] { |
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449 | # don't include looped names |
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450 | if {[lsearch $looplist $name] == -1} { |
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451 | $tree insert end block$n [incr num] -text $name \ |
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452 | -image [Bitmap::get folder] -data block$n |
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453 | } |
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454 | } |
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455 | foreach loop [array names block$n loop_*] { |
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456 | $tree insert end block$n block${n}$loop -text $loop \ |
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457 | -image [Bitmap::get file] -data "block$n loop" |
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458 | foreach name [set block${n}($loop)] { |
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459 | $tree insert end block${n}$loop [incr num] -text $name \ |
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460 | -image [Bitmap::get folder] -data "block$n $loop" |
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461 | } |
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462 | } |
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463 | foreach name [array names block$n errors] { |
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464 | $tree insert end block$n [incr num] -text $name \ |
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465 | -image [Bitmap::get undo] -data block$n |
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466 | } |
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467 | } |
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468 | $tree bindImage <1> "showCIFvalue $tree $sw" |
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469 | $tree bindText <1> "showCIFvalue $tree $sw" |
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470 | grid [button $frame.c -text Close -command "destroy $frame"] -column 0 -row 1 |
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471 | } |
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472 | |
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473 | # used in BrowseCIF in response to the spinbox |
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474 | # show the contents of a loop |
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475 | proc ShowLoopVar {array loop frame sb} { |
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476 | global $array |
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477 | set looplist [set ${array}($loop)] |
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478 | set index [$sb getvalue] |
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479 | set i 0 |
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480 | foreach var $looplist { |
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481 | incr i |
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482 | [$frame.$i getframe].l config \ |
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483 | -text [lindex [set ${array}($var)] $index] |
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484 | } |
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485 | } |
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486 | |
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487 | # used in BrowseCIF in response to the clicking on a CIF dataname |
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488 | # shows the contents data name or a loop |
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489 | proc showCIFvalue {tree sw name} { |
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490 | set data [$tree itemcget $name -data] |
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491 | set text [$tree itemcget $name -text] |
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492 | |
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493 | # delete old contents of frame |
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494 | set frame [$sw.lb getframe] |
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495 | eval destroy [grid slaves $frame] |
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496 | # reset the scrollbars |
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497 | $sw.lb xview moveto 0 |
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498 | $sw.lb yview moveto 0 |
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499 | # leave room for a scrollbar |
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500 | grid columnconfig $frame 0 -minsize [expr \ |
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501 | [winfo width [winfo parent $frame]] - 20] |
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502 | if {$data == ""} { |
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503 | return |
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504 | } |
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505 | |
---|
506 | # |
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507 | if {[llength $data] == 2} { |
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508 | global [lindex $data 0] |
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509 | if {[lindex $data 1] == "loop"} { |
---|
510 | set looplist [set [lindex $data 0]($text)] |
---|
511 | # get number of elements for first name |
---|
512 | set names [llength [set [lindex $data 0]([lindex $looplist 0])]] |
---|
513 | set sb $frame.spin |
---|
514 | grid [SpinBox $sb -range "1 $names 1" \ |
---|
515 | -label "Loop\nelement #" -labelwidth 10 -width 10 \ |
---|
516 | -command "ShowLoopVar [lindex $data 0] $text $frame $sb" \ |
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517 | -modifycmd "ShowLoopVar [lindex $data 0] $text $frame $sb"] \ |
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518 | -column 0 -row 0 -sticky w |
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519 | set i 0 |
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520 | foreach var $looplist { |
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521 | incr i |
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522 | grid [TitleFrame $frame.$i -text $var -side left] \ |
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523 | -column 0 -row $i -sticky ew |
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524 | pack [label [$frame.$i getframe].l -anchor w -justify left] -side left |
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525 | } |
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526 | ShowLoopVar [lindex $data 0] $text $frame $sb |
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527 | } else { |
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528 | grid [TitleFrame $frame.0 -text $text -side left] \ |
---|
529 | -column 0 -row 0 -sticky ew |
---|
530 | set row 0 |
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531 | set frame0 [$frame.0 getframe] |
---|
532 | grid columnconfig $frame0 2 -weight 1 |
---|
533 | foreach name [set [lindex $data 0]($text)] { |
---|
534 | incr row |
---|
535 | grid [label $frame0.a$row -justify left -text $row]\ |
---|
536 | -sticky w -column 0 -row $row |
---|
537 | grid [label $frame0.b$row -bd 2 -relief groove \ |
---|
538 | -justify left -anchor w -text $name]\ |
---|
539 | -sticky new -column 1 -row $row |
---|
540 | } |
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541 | } |
---|
542 | } else { |
---|
543 | # unlooped data name |
---|
544 | global [lindex $data 0] |
---|
545 | grid [TitleFrame $frame.0 -text $text -side left] \ |
---|
546 | -column 0 -row 0 -sticky ew |
---|
547 | pack [label [$frame.0 getframe].l -anchor w -justify left\ |
---|
548 | -text [set ${data}($text)]] -side left |
---|
549 | } |
---|
550 | } |
---|
551 | |
---|
552 | # Parse a number in CIF, that may include a SU (ESD) value |
---|
553 | # note that this routine will ignore spaces, quotes & semicolons |
---|
554 | proc ParseSU {value} { |
---|
555 | # if there is no SU just return the value |
---|
556 | if {[string first "(" $value] == -1} { |
---|
557 | return $value |
---|
558 | } |
---|
559 | # is there a decimal point? |
---|
560 | if [regexp {([-+]?[0-9]*\.)([0-9]*)\(([0-9]+)\)} $value junk a b err] { |
---|
561 | set ex [string length $b] |
---|
562 | return [list ${a}${b} [expr {pow(10.,-$ex)*$err}]] |
---|
563 | } |
---|
564 | if [regexp {([-+]?[0-9]*)\(([0-9]+)\)} $value junk a err] { |
---|
565 | return [list ${a} $err] |
---|
566 | } |
---|
567 | tk_dialog .err {ParseSU Error} \ |
---|
568 | "ParseSU: Error processing value $value" \ |
---|
569 | warning 0 Continue |
---|
570 | } |
---|
571 | |
---|
572 | # a stand-alone routine for testing. Select, read and browse a CIF |
---|
573 | proc Read_BrowseCIF {} { |
---|
574 | global tcl_platform |
---|
575 | if {$tcl_platform(platform) == "windows"} { |
---|
576 | set filetypelist { |
---|
577 | {"CIF files" .CIF} {"All files" *} |
---|
578 | } |
---|
579 | } else { |
---|
580 | set filetypelist { |
---|
581 | {"CIF files" .CIF} {"CIF files" .cif} {"All files" *} |
---|
582 | } |
---|
583 | } |
---|
584 | set file [tk_getOpenFile -parent . -filetypes $filetypelist] |
---|
585 | if {$file == ""} return |
---|
586 | if {![file exists $file]} return |
---|
587 | # plasewait and donewait are defined in gsascmds.tcl and may not be present |
---|
588 | catch {pleasewait "Reading CIF file"} |
---|
589 | set blocks [ParseCIF $file] |
---|
590 | if {$blocks == ""} { |
---|
591 | donewait |
---|
592 | MessageBox -parent . -type ok -icon warning \ |
---|
593 | -message "Note: no valid CIF blocks were read from file $filename" |
---|
594 | return |
---|
595 | } |
---|
596 | catch {donewait} |
---|
597 | set allblocks {} |
---|
598 | for {set i 1} {$i <= $blocks} {incr i} { |
---|
599 | lappend allblocks $i |
---|
600 | } |
---|
601 | if {$allblocks != ""} { |
---|
602 | BrowseCIF $allblocks "" .cif |
---|
603 | # wait for the window to close |
---|
604 | tkwait window .cif |
---|
605 | } else { |
---|
606 | puts "no blocks read" |
---|
607 | } |
---|
608 | # clean up -- get rid of the CIF arrays |
---|
609 | for {set i 1} {$i <= $blocks} {incr i} { |
---|
610 | global block$i |
---|
611 | unset block$i |
---|
612 | } |
---|
613 | } |
---|