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5

Yes, there is a way to do that. In the symbology palette for the overlay raster, you can select the Display Background Value (R, G, B) _ _ _ as ___ option (see screenshot for a raster I have doing the same thing with a white background. Assuming your background image is truly all white, your values will also be 255, 255, 255 in the boxes. Make sure to select ...


3

You can block out the "white" using a Mask function, through the image analysis window. Change NoData Interpretation to "All", and add values 0 (minimum) and 250 (maximum) to all bands in your raster. As your image may contain "near white" values, you may want to lower the masking threshold to, say, 245. The "white" values will also depend on the pixel depth ...


2

Just wanted to provide an update to this question, I know it was awhile back. So, yes, it is now possible to add a field to an already existing table in ArcGIS Online. Just open the attribute table, click on Table Options on the right hand-side, and then select Add Field.


2

I'll assume that you are trying to do this on two polygons in the same feature class of a geodatabase. I tested using a file geodatabase but other flavours should work fine too. Shapefiles will not have their areas updated automatically but geodatabase feature classes do. What you want to do is easy using Map Topology at any license level of ArcGIS ...


2

I do this a lot with historic maps, and began by using @nicksan's method, but had the same issues the OP mentioned. I haven't used the mask method (will try soon) but here's what I do now, if you can deal with not having the red and blue in your overlay: Make sure you have Updated Georeferencing in the georeferencing toolbar and then remove the layer from ...


1

When you copy a feature, not only do you copy its visible attributes (ie. from the Attribute Table) but you also copy its invisible attributes (ie. wkt_geom which is the coordinates of the features' dimensions). So when you move your features to another geographic location, the coordinates for each dimension will also change. Therefore, I do not think it's ...


1

The answer by nicksan is good, though if your pdf was not be a perfectly-white background, you might have better luck removing it in image editing software rather than ArcGIS. After doing that, georeference the new image. There are a number of ways to do this. If you have access to Photoshop, you could try the magic wand tool. Other image editing ...


1

It is possible that you have a definition query on that feature class or shapefile in ArcMap. Right click the layer in ArcMap, and go to Properties. Then select the Definition Query tab. Make sure that this field is empty if you want no restrictions on what data you see. All of the data that you entered might be there, just not visible in arc. Good Luck!


1

you don't need a programmatic hook into selecting a template immediately. just wire up logic to invoke the appropriate draw tool and pass edits to your hardcoded featureLayer of interest on draw-end immediately upon map load. afterward, you can still listen for selection-change on TemplatePicker and direct the edits somewhere else.


1

This seems to have been a issue with SQL Server for some time now. Not sure why they don't allow it. If you change your update statement to something like this, it should work. UPDATE [dbo].[MyFeatureClass_evw] SET [dbo].[MyFeatureClass_evw].[Status] = ( SELECT A.[Status_2] FROM [dbo].[MySDEDataTable] AS A WHERE ...


1

I think you have two issues here. The first may be misleading. The warning that you're getting when you start editing is only that--a warning. It means that one or more of the data layers are in a different coordinate reference system than the map's. You can check what's going on by opening the data frame's property page (one method is to right-click ...


1

Since there were no answers providing you with shortcuts, I'd like to answer with another workaround based on the Field Calculator. Start editing string values in the attribute table and insert a special character (I chose _ for the example) that will serve as a delimiter character to wrap to a new line: Once you have edited the values, open the Field ...



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