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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>gis.m: PROFILE TOOL</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link rel="stylesheet" href="grassdocs.css" type="text/css">
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<h2>PROFILE TOOL (gis.m)</h2>
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The Profile Tool will draw a 2-dimensional profile of the surface of
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any raster map. The profile will be calculated along a transect line, drawn
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with a mouse on a map display. The transect line can be a
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simple line (i.e., with only a beginning and ending node) or a complex
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polyline (i.e., with multiple segments, delineated by multiple nodes).
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<h3>Using the Profile Tool</h3>
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The Profile Tool is started from profile button
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<img alt="" src="icons/grass/gui-profile.gif"> on the toolbar of an active
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<div align="center"><img src="gm_profile1.png" alt="" align="top" height="264" width="400">
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<img src="gm_profile2.png" alt="" height="422" width="480">
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<li>Click the map button on the Profile Tool toolbar to select a raster map
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to profile. The map to profile can be different from the one displayed.
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Click the transect button to begin drawing a transect to profile with a mouse
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the current map display (i.e., the map display from which you launched the
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Profile Tool). Draw by holding down the left button to make a
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"rubber-band" line for each segment of the transect. A transect can
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have a single, straight segment or multiple segment. There is no need
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to "end" the drawing. The Profile Tool will profile the drawn transect
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at any time. You can also extend an existing transect and
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draw a profile of the new transect.
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<li>Click the profile button to create the profile.
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<div align="center"><img src="gm_profile3.png" alt="" height="264" width="400">
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The profile extends from left to right in the profile display. The
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horizontal (x-axis) scale represents the total distance along the
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transect to be profiled. Vertical lines mark each node on a
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multi-segment transect and show the total distance along the transect
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to the node. The vertical (y-axis) scale is in units of the map that is
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being profiled. All scaling and axis labels are created automatically,
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and cannot be changed by the user.<br><br>The erase button will erase the
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current transect and profile.
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The save button will save the profile to an EPS format file
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<a href="gis.m.html">gis.m</a><br>
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<a href="r.transect.html">r.transect</a><br>
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<a href="i.rectify.html"><br></a><a href="v.proj.html"></a>
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Michael Barton, Arizona State University, Tempe, Arizona, USA<br>
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Hamish Bowman, University of Otago, Dunedin, New Zealand
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<p><i>Last changed: $Date: 2008-08-13 16:23:32 +0200 (Wed, 13 Aug 2008) $</i></p>
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