Contents
Can you ignore nodata in a raster dataset?
The image on the left shows a NoData area with a black background, and the image on the right shows that same area using no color. When calculating the statistics for a raster dataset, you can choose to ignore any cells with NoData.
How to calculate no data values in raster calculator?
Open the calculator dialog and select both layers of the project in the input layers field. Enter the following formula in the corresponding field: a refers to the accumulated flow layer (since it is the first one to appear in the list) and b refers to the DEM.
What kind of raster is the Euclidean distance?
The output raster is of integer type. The output Euclidean distance raster. The distance raster identifies, for each cell, the Euclidean distance to the closest source cell, set of source cells, or source location. The output raster is of floating point type.
Where do I find the nodata value in ArcGIS?
In the ArcCatalog or the Catalog window, right-click the raster dataset and click Properties. On the General tab, under Raster Information is the NoData Value. Click the Edit button. The NoData Editor dialog box is opened.
How do you assign a cell to a nodata?
There are two ways to assign the cell value in a raster dataset to be NoData—using the Set Null tool or through the raster dataset’s Properties dialog box. You can also remove a value from being NoData using the raster dataset’s Properties dialog box.
Why are there homogeneous areas in a raster dataset?
Sometimes there are homogeneous areas in a raster dataset that the you do not want to display. These can include borders, backgrounds, or other data considered to not have valid values. Sometimes these are expressed as NoData values, although other times they may have real values.
How to set the extent of a raster?
Try to apply Con (IsNull (“raster”), 0, “raster”) to the raster that has “NoData” value. To tell you in the detail, here is my explanation. First, You have to make sure that all rasters have the same extent as you desire (for instance, you can set the extent to the largest raster’s extent).