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<body bgcolor = "#FFFFCC"><basefont face = "Arial"> |
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<h1>LEM: Customization</h1><h2>Parameter Information</h2> |
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<hr size = 10> |
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Customization parameters are used to control scaling of arrows |
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that represent loci and the scaling of unsampled or intergenic |
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regions. These parameters can help constrain the length of an |
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open (unsampled) regions or long loci. |
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<h2>Locus Arrow Dimensions</h2> |
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These options control the rendering of locus arrows. <b><i>Use Fixed |
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Arrow Length</i></b> indicates that all loci should appear to be of the |
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same length as indicated by the text field. The input units are pixels and |
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at any point the <i>Preview</i> button can be hit to see the |
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impact of the current settings. Using fixed length arrows helps to |
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constrain the size of the viewer and fit more loci into a viewable |
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area.<br><br> |
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The <b><i>Use Scaled Arrow Length</i></b> option will scale arrows such |
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that each pixel corresponds |
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to a given number of bases. The <i>Scaling Factor</i> controls the scaling |
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by applying a supplied factor in units of bases/pixel. Decreasing |
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this factor increases the length of the arrows and the resolution of sequence |
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length differences by rendering fewer bases per pixel length.<br><br> |
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The <i>Minimum</i> and <i>Maximum Scaled Arrow Length</i> parameters constrain |
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the redering |
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so that very short sequences are rendered such that annotation can be |
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read and very long sequences are not unreasonably long. Regardless of the |
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scaling, the 5' and 3' ends of the locus are always provided as |
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annotation. |
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<h2>Intergenic or Unsampled Region Dimensions</h2> |
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This option allows you to cotrol the length of unsampled areas of |
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the chromosome. Using a fixed length constrains all areas not covered |
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by a sampled locus to be constrained to 1 pixel. This compresses areas |
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that might be quite long and uninformative if sampled loci are spread far appart. |
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If the fixed length option is not selected there is a parameter to constrain |
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the length of these areas to fall below a supplied limit. |
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<h2>Locus Replicate Rendering</h2> |
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This option displays an arrow for each spot that corresponds to a given locus. |
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If four spots map to a locus then one arrow is displayed for the mean expression |
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and four arrows are shown to the right that correspond to the expression of |
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each of the four spots. If selected, arrow and unsampled regions are both |
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moved to the fixed option to simplify rendering of the replicate arrows. |
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</basefont> |
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</body> |
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</html> |