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76 <h1>Selection filter library</h1>
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78 <p>Selection filter library is a powerful tool enabling to create filters
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79 to be used on meshes. You can access to it from the Main Menu via <span
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80 style="font-weight: bold;"><B>Tools / Selection filter library.</B></span></p>
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84 <p class="whs1"><img src="pics/selectionfilterlibrary.png" x-maintain-ratio="TRUE" width="624px" height="776px" border="0" class="img_whs2"></p>
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88 <p class="whs1">Library file name s<span style="font-weight: normal;">hows
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89 the path and the file name where your filters will be stored. By clicking
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90 the</span> <img src="image103.gif" width="31px" height="30px" border="0" class="img_whs3"> <span style="font-weight: normal;">browse button
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91 you can load an existing filter library.</span></p>
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93 <p><span style="font-weight: bold;"><B>Names of filters</B></span> lists the filters
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94 created or uploaded for the current study. You can <span style="font-weight: bold;"><B>Add</B></span>
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95 or <span style="font-weight: bold;"><B>Delete</B></span> filters. </p>
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97 <p>In <span style="font-weight: bold;"><B>Filter name</B></span> box you can specify
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98 the name for your filter. By default it is prefixed with the corresponding
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101 <p>Each filter can be applicable to <span style="font-weight: bold;"><B>Nodes,
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102 Edges, Faces</B></span> or <span style="font-weight: bold;"><B>Volumes</B></span>.
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103 You can combine many criteria in one filter, but they all must be of the
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104 same <span style="font-weight: bold;"><B>Entity type</B></span>. </p>
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106 <p>The <span style="font-weight: bold;"><B>Add</B></span> button creates a new
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107 criterion at the end of the list of criteria. The <span style="font-weight: bold;"><B>Insert</B></span>
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108 button creates a new criterion before the selected criterion. The <span
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109 style="font-weight: bold;"><B>Remove</B></span> button deletes the selected criterion.
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110 The <span style="font-weight: bold;"><B>Clear</B></span> button deletes all criteria.
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113 <p>Each <span style="font-weight: bold;"><B>Entity type</B></span> has its specific
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114 list of criteria, however all filters have common syntax. For each criterion
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115 you should specify the <span style="font-weight: bold;"><B>Threshold Value</B></span>
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116 and whether we search for the elements that should be <span style="font-weight: bold;"><B>More,
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117 Less or Equal</B></span> to this <span style="font-weight: bold;"><B>Value</B></span>.
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118 You should also specify if the criterion is <span style="font-weight: bold;"><B>Unary</B></span>
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119 or <span style="font-weight: bold;"><B>Binary.</B></span> </p>
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121 <p>Some criteria should have the additional parameter of <span style="font-weight: bold;"><B>Tolerance</B></span>.</p>
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125 <p>When we create a <span style="font-weight: bold;"><B>Standalone Group</B></span>
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126 using filters (for this click <span style="font-weight: bold;"><B>Set Filters</B></span>
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127 button in the <span style="font-weight: bold;"><B>Create Group</B></span> menu),
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128 the menu for setting filters looks a bit differently. Toggling <span style="font-weight: bold;"><B>Insert
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129 filter in viewer</B></span> checkbox enables to preview the group selected
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130 with your current filter in the viewer. </p>
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132 <p>In the <span style="font-weight: bold;"><B>Source</B></span> field you choose
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133 if the filter will be applied to the whole <span style="font-weight: bold;"><B>Mesh</B></span>,
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134 the<span style="font-weight: bold;"><B> Initial Selection </B></span>or the<span
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135 style="font-weight: bold;"><B> Current Group. </B></span></p>
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137 <p><span style="font-weight: bold;"><B>Copy from...</B></span> button gives you
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138 a possibility to load an existing filter from <span style="font-weight: bold;"><B>Selection
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139 filter library</B></span> and <span style="font-weight: bold;"><B>Add to...</B></span>
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140 button gives you a possibility to save your current filter in the Library.
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145 <p><img src="pics/a-filteronedges.png" x-maintain-ratio="TRUE" width="624px" height="525px" border="0" class="img_whs4"></p>
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