topic Re: Applying a simple sum using Python in the 'Raster Calculator' in Python Questions https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316824#M24631 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Are you attempting to run a script in PythonWin or IDLE?</BLOCKQUOTE><BR /><BR /><SPAN>Neither, from what I can tell. I'm in ArcGIS10 with the Raster Calculator open. All three raster layers are in the .gdb and await the simple function. </SPAN><BR /><BR /><SPAN>I'll keep trying.</SPAN><BR /><BR /><SPAN>Oh, it's working now... User error. Thanks chaps.</SPAN></BODY></HTML> Fri, 11 May 2012 13:28:45 GMT CliveCartwright 2012-05-11T13:28:45Z Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316820#M24627 <HTML><HEAD></HEAD><BODY><SPAN>It's Friday and I'm getting nowhere looking through the forum(s). So, here's hoping...?</SPAN><BR /><BR /><SPAN>I've got 3 rasters that need to be mangled through the following sum using the Raster Calculator:</SPAN><BR /><BR /><SPAN>("mean_curv" x "mean_curv") - (("plan"-"prof") x ("plan"-"prof") x 0.5) = Output Raster</SPAN><BR /><BR /><BR /><BR /><SPAN>I'm sure I used to do this using the old VB, but my head hurts now. <span class="lia-unicode-emoji" title=":disappointed_face:">😞</span></SPAN><BR /><BR /><SPAN>Any help would be much appreciated.</SPAN></BODY></HTML> Fri, 11 May 2012 12:58:37 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316820#M24627 CliveCartwright 2012-05-11T12:58:37Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316821#M24628 <HTML><HEAD></HEAD><BODY><SPAN>Hi Clive,</SPAN><BR /><BR /><SPAN>What is the error you are receiving when you attempt to execute the equation in the Raster Calculator?</SPAN></BODY></HTML> Fri, 11 May 2012 13:04:40 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316821#M24628 JakeSkinner 2012-05-11T13:04:40Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316822#M24629 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hi Clive,<BR /><BR />What is the error you are receiving when you attempt to execute the equation in the Raster Calculator?</BLOCKQUOTE><BR /><BR /><SPAN>It comes out with the following:</SPAN><BR /><BR /><SPAN>ERROR 000989: Python syntax error: Parsing error &lt;type</SPAN><BR /><SPAN>'exceptions.SyntaxError'&gt;:invalid syntax (line1)</SPAN><BR /><BR /><BR /><SPAN> Then a big hand comes out from behind the monitor and slaps me across the top of my head. It's beginning to upset me now. <span class="lia-unicode-emoji" title=":disappointed_face:">😞</span></SPAN></BODY></HTML> Fri, 11 May 2012 13:11:51 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316822#M24629 CliveCartwright 2012-05-11T13:11:51Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316823#M24630 <HTML><HEAD></HEAD><BODY><SPAN>The Raster Calculator needs to be executed in Desktop or Model Builder.&nbsp; See </SPAN><A href="http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z000000z7000000.htm">here</A><SPAN>:</SPAN><BR /><BR /><SPAN style="font-style:italic;">The Raster Calculator tool is intended&nbsp; for use in the ArcGIS Desktop application only as a GP tool dialog box&nbsp; or in ModelBuilder. It is not&nbsp; intended for use in scripting and is not&nbsp; available in the ArcPy Spatial Analyst module.</SPAN><BR /><BR /><SPAN>Are you attempting to run a script in PythonWin or IDLE?</SPAN></BODY></HTML> Fri, 11 May 2012 13:21:11 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316823#M24630 JakeSkinner 2012-05-11T13:21:11Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316824#M24631 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Are you attempting to run a script in PythonWin or IDLE?</BLOCKQUOTE><BR /><BR /><SPAN>Neither, from what I can tell. I'm in ArcGIS10 with the Raster Calculator open. All three raster layers are in the .gdb and await the simple function. </SPAN><BR /><BR /><SPAN>I'll keep trying.</SPAN><BR /><BR /><SPAN>Oh, it's working now... User error. Thanks chaps.</SPAN></BODY></HTML> Fri, 11 May 2012 13:28:45 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316824#M24631 CliveCartwright 2012-05-11T13:28:45Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316825#M24632 <HTML><HEAD></HEAD><BODY><SPAN>Can you send a screen shot of your Raster Calculator dialog?&nbsp; Also, what are the properties of your raster datasets?&nbsp; Ex:</SPAN><BR /><BR /><SPAN>ESRI GRID</SPAN><BR /><SPAN>32 bit floating point</SPAN><BR /><BR /><SPAN>Also, what is the coordinate system of the raster datasets?</SPAN></BODY></HTML> Fri, 11 May 2012 13:32:08 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316825#M24632 JakeSkinner 2012-05-11T13:32:08Z Re: Applying a simple sum using Python in the 'Raster Calculator' https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316826#M24633 <HTML><HEAD></HEAD><BODY><SPAN>several suggestions</SPAN><BR /><SPAN>1&nbsp; type as little as possible in the raster calculator, select available buttons</SPAN><BR /><SPAN>2&nbsp; I think x should be *</SPAN><BR /><SPAN>3&nbsp; ensure that there are spaces between gridnames and operators, which be automatic if you select buttons</SPAN><BR /><SPAN>4&nbsp; Output Raster will fail since there is a space and it is on the wrong side of the equal sign</SPAN><BR /><SPAN>Give some of these ideas a try</SPAN></BODY></HTML> Fri, 11 May 2012 13:38:25 GMT https://community.esri.com/t5/python-questions/applying-a-simple-sum-using-python-in-the-raster/m-p/316826#M24633 DanPatterson_Retired 2012-05-11T13:38:25Z