Terah Antwi
  • Member for 5 years, 4 months
  • Last seen more than 1 year ago
  • Kumasi Metropolitan, Ashanti Region, Ghana
Using Raster calculator gives ERROR 000539
0 votes

Rename the bands for the ndwi. say band 1, band2, band3, and band 4. Open python IDE in ArcMap, and type in * img 1 = arcpy.Raster("C:/band1(Path)") - Do for img 2, img 3 and img 4 * Ndwi =float( ...

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Adding vertex to line at point location using ArcPy?
-1 votes

I think you had your geometry token for your points wrong. It should have come as "Shape@". The code can be written as : Import arcpy # Setting path arcpy.env.workspace = "path" ...

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Two raster classes according to cut-off elevation using ArcPy?
1 votes

you would have to use 'Con'in spatial analysis. for instance your code would have to look like this import arcpy from arcpy.sa import * arcpy.OverwriteOutput= True def getRaster(inRaster,outRaster) ...

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Correlation between layers
1 votes

In determining correlation between layers, one method to use is the "point data" and "rank field" you have in your attribute data. For suitable assessment, i suggest your points should not be less ...

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Identify polygons with multiple attributes
Accepted answer
2 votes

You can use "definition query" for your attribute data. You right click on the dataset that contains the attribute or a spatial data, then you click on "properties", select "definition query" from the ...

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Clipping a .tif (DTM) file by polygon
1 votes

In Arcmap, create a shapefile with polygon as feature type(you can assign a cordinate system if the source of DTM is known). Bring the Editor toolbar by going to "Customize","Toolbars" and click on "...

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Caching Raster Imagery
1 votes

In caching the Raster Dataset in ArcGIS online. go to File, save a service definition file, choose available service, continue , service editor. Look for 'Caching' on the service editor. you have two ...

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Filling in Null Data Gaps in Raster Image
2 votes

Fill in Arcmap helps to remove imperfections in surface raster Data. Go to Arc Toolbox, Spatial Analyst Tools ,Hydrology , Fill. This Fill will use the surrounding cell values to interpolate for the ...

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Assigning variables from feature class/shapefile?
1 votes

eq = (41.144, -114.872, 1.6, 1.6, 1.9, 10.0, 21.0, 212.0, 71.0) strike1, dip1, ht1, wt1, ... ,lt1 = eq Be sure to make your number of variables be almost close to the number of items in 'eq' print(...

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Where can I find GIS dataset (.shp, .gdb, etc) on Washington DC lead pipes?
2 votes

sign in at www.arcgisonline.com,then visit www.arcgisonline.com/home. Go to the search area, and type "Washington DC Pipes". All related data will show up, click on the drop down at open, and download ...

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GPS conversion from degrees and radians
Accepted answer
3 votes

You can use formula sheet in excel to transform to decimal degrees. In the formula bar,TYPE"=B2+(C2+(D2/60))/60" beneath DD(X) and DD(Y). Try using your excel and represent it like the image above ...

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How does a Spatial Reference System like WGS84 have an elipsoid and a geoid?
2 votes

When measuring heights, there should be an initial point or zero point as reference for measuring. That is where the Geoid and Ellipsoid fits in. The Ellipsoid and Geoid are considered the initial ...

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Elevation graph shows all the profiles starting at the same point eventhough one of them starts farther inland?
0 votes

CHANGE DETECTION. This will require you to compare same spot(location) on the same image(same resolution e.g. if google images, it should be all google images) at different times. For example, you can ...

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Export attribute table values to CSV
3 votes

This process maybe lengthy, but it's worth it. Click on "file" on the attribute table. Go to Export, and click on the "Output", click on "Save as type" and select dbase table. After this process, ...

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Determine when an object nears a point
1 votes

==Distance between current location and Destination also comes in mind. It will be an easy and quiet precise implementation ,with the likes of Voronoid diagram(considering the algorithm behind ...

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Incorrect length from Flow Length tool
1 votes

You need to Project (or batch project if shapefiles) to Projected Coordinate System (coordinates come with units like metres, cm, etc) using Data management Toolbox in ArcToolbox. This should solve ...

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