Questions tagged [calculate-values]
The calculate-values tag has no usage guidance.
109 questions
1
vote
0
answers
429
views
Calculating normal vector distance between two surfaces using ArcGIS Desktop?
I have two surfaces mapped out from seismic data, imported as x,y,z datasets in ArcMap and then converted to rasters using the point to raster tool. These surfaces are rugose (seafloor and an ...
0
votes
1
answer
337
views
Using ouput data variables in subsequent calculation within ArcGIS ModelBuilder?
Using ArcGIS Desktop 10.3.1, I have two simple polygon shapefiles, each with just a single feature.
I'm new at ModelBuilder, and have 2 tasks:
calculate the acreage within each of the two shapefiles,...
3
votes
2
answers
2k
views
Extracting data from HTML field in table using ArcGIS Desktop?
I'm operating ArcGIS.
I need to make a calculated field. The value of the field is a sub-string of one of the other fields. My problem is that the other field (PopUpInfo) is an HTML string:
An ...
1
vote
1
answer
278
views
Performing calculation in neighborhood 3x3?
I'm looking for the way to perform some calculation with each cell in neighborhood 3x3 and assign value to center cell. For example I'd like to sum z1 with z5, z2 with z5 etc. and then assign average ...
1
vote
1
answer
561
views
Seeking point statistic tool in QGIS?
Does anyone know if there's a tool in QGIS that is equivalent to ArcGIS Point Statistics?
I need to create a raster with values from an attribute in a Point layer.
2
votes
2
answers
4k
views
ModelBuilder: Using Parse Path in iterative model to include folder name in output file name
I have a simple model in ModelBuilder that does the following:
Iterate through a folder of rasters (these are outputs from Global
Climate Models)
Clip each raster to a study area (Egypt), using a ...
2
votes
1
answer
262
views
How to use the field calculator in QGIS to determine the total of differents fields
I have an attribute table with 7 fields.
I want my attribute " A1 " to be the total of " IP1 to IP5 ". I am not familiar with the request in the field calculator.
How can I calculate the value of ...
7
votes
2
answers
3k
views
Cell Statistics calculation in QGIS
Cell Statistics in ArcGIS will calculate the mean (or statistic of choice) among multiple rasters on a cell-by-call basis.
Can QGIS do this and, if so, how?
7
votes
2
answers
7k
views
Calculating average values in point layer with respect to polygon layer in QGIS
In QGIS I have two layers:
a point layer with a column that contains numbers (pollution index from specific measurement point);
a polygon layer with different regions.
I want to find the average ...