https://grasswiki.osgeo.org/w/index.php?action=history&feed=atom&title=Category%3AAngle_ConventionsCategory:Angle Conventions - Revision history2026-04-23T10:58:45ZRevision history for this page on the wikiMediaWiki 1.41.0https://grasswiki.osgeo.org/w/index.php?title=Category:Angle_Conventions&diff=21647&oldid=prev⚠️Madi at 07:23, 20 July 20152015-07-20T07:23:06Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 07:23, 20 July 2015</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention), which means CCW from E and pointing <del style="font-weight: bold; text-decoration: none;">TO </del>the direction (aspect, flow), whereas when dealing with meteorological data<del style="font-weight: bold; text-decoration: none;">, for example</del>, wind is usually expressed CW from N and pointing <del style="font-weight: bold; text-decoration: none;">FROM </del>where wind blows.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention), which means CCW from E and pointing <ins style="font-weight: bold; text-decoration: none;">to </ins>the direction (aspect, flow), whereas <ins style="font-weight: bold; text-decoration: none;">for example </ins>when dealing with meteorological data, wind is usually expressed CW from N and pointing <ins style="font-weight: bold; text-decoration: none;">from </ins>where wind blows.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some modules currently adopt different angle conventions, therefore it is always necessary to be aware of which convention the direction maps are expressed in. See also {{trac|2347}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some modules currently adopt different angle conventions, therefore it is always necessary to be aware of which convention the direction maps are expressed in. See also {{trac|2347}}</div></td></tr>
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</table>⚠️Madihttps://grasswiki.osgeo.org/w/index.php?title=Category:Angle_Conventions&diff=21637&oldid=prev⚠️Madi at 18:11, 19 July 20152015-07-19T18:11:16Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:11, 19 July 2015</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention), which means CCW from E and pointing TO the direction (aspect, flow), whereas when dealing with meteorological data, for example, wind is usually expressed CW from N and pointing FROM where wind blows.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention), which means CCW from E and pointing TO the direction (aspect, flow), whereas when dealing with meteorological data, for example, wind is usually expressed CW from N and pointing FROM where wind blows.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Some modules currently adopt different angle conventions, therefore it is always necessary to be aware of which convention the direction maps are expressed in.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Some modules currently adopt different angle conventions, therefore it is always necessary to be aware of which convention the direction maps are expressed in. <ins style="font-weight: bold; text-decoration: none;">See also {{trac|2347}}</ins></div></td></tr>
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</table>⚠️Madihttps://grasswiki.osgeo.org/w/index.php?title=Category:Angle_Conventions&diff=21636&oldid=prev⚠️Madi at 18:07, 19 July 20152015-07-19T18:07:23Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:07, 19 July 2015</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the field of study they are used in. </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention). <del style="font-weight: bold; text-decoration: none;">However, some </del>modules currently adopt <del style="font-weight: bold; text-decoration: none;">a </del>different <del style="font-weight: bold; text-decoration: none;">convention</del>, <del style="font-weight: bold; text-decoration: none;">and </del>it is always necessary to be aware of which convention the direction maps are expressed in.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention)<ins style="font-weight: bold; text-decoration: none;">, which means CCW from E and pointing TO the direction (aspect, flow), whereas when dealing with meteorological data, for example, wind is usually expressed CW from N and pointing FROM where wind blows</ins>.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Some </ins>modules currently adopt different <ins style="font-weight: bold; text-decoration: none;">angle conventions</ins>, <ins style="font-weight: bold; text-decoration: none;">therefore </ins>it is always necessary to be aware of which convention the direction maps are expressed in.</div></td></tr>
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</table>⚠️Madihttps://grasswiki.osgeo.org/w/index.php?title=Category:Angle_Conventions&diff=21635&oldid=prev⚠️Madi at 18:01, 19 July 20152015-07-19T18:01:25Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:01, 19 July 2015</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the <del style="font-weight: bold; text-decoration: none;">domain </del>they are used in.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Maps expressing directions may use different conventions according to the <ins style="font-weight: bold; text-decoration: none;">field of study </ins>they are used <ins style="font-weight: bold; text-decoration: none;">in. </ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The "GRASS" convention is 'theta CCW from the +x axis' (i.e. mathematical|Cartesian convention). However, some modules currently adopt a different convention, and it is always necessary to be aware of which convention the direction maps are expressed </ins>in.</div></td></tr>
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</table>⚠️Madihttps://grasswiki.osgeo.org/w/index.php?title=Category:Angle_Conventions&diff=21634&oldid=prev⚠️Madi: angle convention category created2015-07-19T17:46:46Z<p>angle convention category created</p>
<p><b>New page</b></p><div>Maps expressing directions may use different conventions according to the domain they are used in.</div>⚠️Madi