Latest Contributions by DanPatterson_Retired

There will be a value for the cell.  Don't confuse the symbology range with the values for a given cell.  Also kernel density is observations per unit area.  To get the count, follow the outline in the blog example ... View more

to quote the blog Even when it makes sense to interpret the cell values, it is often much more meaningful to report the expected count within a cell than it is to report the cell density value.  Density is count divided by area, so multiplying the density by area will give an expected count.  Using the example of crimes in a city over one month, suppose we use an output cell size of 0.5 kilometers, and we see that one cell receives a value of 16 crimes per square kilometer.  Since the area of the cell is 0.25 square kilometers (0.5 km * 0.5 km = 0.25 km 2 ), we can multiply the density by the area to get an expected count of 4 crimes (16 crimes/km 2 * 0.25 km 2 = 4 crimes).  This means that if crime conditions do not change month-to-month, we expect to see about 4 crimes in that cell the following month.  If another cell has an expected count of 0.5 crimes, the interpretation would be that if the conditions for crime do not change, we expect about one crime in that cell every two months. It is a simply a process a multiplication process which can be accomplished through the raster calculator given your cell size ... View more

In other threads, a Mosaic Dataset is recommended rather than mosaicking them all ... View more

You are going to cause yourself a whole lot of problems reprojecting the data just so someone feels comfortable viewing it in a certain way...tongue-in solutions...tilt their heads, tilt the monitor ... View more

Why does the coordinate system need to be rotated?  Is it for visual effect or analytical?  MTM is pretty darn good projection (SF 0.9999) and, as you know, used by many municipalities/provinces for mapping purposes Or keep your data in MTM and set the dataframe properties to something else that approximates what you need ... View more

Expressing urgency is generally not recommended...format your question without all-caps (this is shouting).  Have you tried your suggestion? Some interesting reading on this topic ... View more

hmmm I would have to sit down and do the math by hand but it seems to be related to the square root 2 used in the calculations... ArcGIS Help (10.2, 10.2.1, and 10.2.2)‌  which is going against what I think it should be (ie circular) ... View more

never seen this behaviour before...what does your cost surface look like? ... View more

have you posted on the wrong forum or is this somehow related to GIS? ... View more

Still more information (and visuals) on the inputs that you used.  If any step in the process is suspect, then watershed will yield erroneous results ... View more

You would have to describe what "proper" results means.  Do you mean unexpected results? or was there an error?  Visuals would help including what you used as inputs to the tools themselves.  Did you fill sinks prior to running of the tools in the Hydrology toolset?  More details required. ... View more

If the geometry is the same in both files and they share the same feature ID, have you ruled out a "join"? ... View more