Latest Contributions by MarkParr

I am playing around with some C# logic to spin line segments indicating if polygons are on the left or right of the line segment.  I am using ISpatialFilter and esriSpatialRelEnum.esriSpatialRelTouches relationship to find polygons that touch a line segment.  I have seen references to the HitTest method to determine left and right side of the relationship based on the bRightSide flag.  However, with my test layer of lines and polygons which looks like Relative to the highlighted street segment, my program finds that it touches polygons A, B, and C but the polygons that I will be interested in are going to be A and C since they are the ones on the left and right of the line segment. B is just touch -- or in the case of a segment that is truly perpendicular to B -- so I would expect the bRightSide flag to be incorrect for HitTest in this case. Any suggestions or a better solution? Thanks ... View more

Doing some testing with a C# program using HitTest() and esriGeometryPartVertex trying to determine if the intersection of two or more lines is at each other From/To points with mixed results. I have drawn some test layers where I purposefully draw the lines that have only a From and To vertex and they connect with other lines at one of their From/To vertices.  I then run a program against that layer using the following code snippet: double dblRadius = 0.0; double dblHitDist = 0.0; int lPartIdx = -1; int lSegIdx = -1; bool blnRightSide = false; IHitTest FeatureHitTest = IntFeature.Shape as IHitTest; bool HitTestResult = FeatureHitTest.HitTest(VertexPt, dblRadius, esriGeometryHitPartType.esriGeometryPartVertex,                                              null, ref dblHitDist, ref lPartIdx, ref lSegIdx, ref blnRightSide); where VertexPt is a From or To point of the source line and IntFeature is an intersecting line feature When running this, some segments/intersections show a TRUE HitTestResult while others show FALSE even though the lines are connected to endpoints when drawn.  There is no rhyme or reason to the TRUE/FALSE return. I purposefully set by the "radius" to 0 thinking that will give me points that are right on top of one another and maybe that is problem.  When I select a decimal non zero number the HitTestResults start becoming TRUE.  How granular is that Radius?  Is it related to my Map Units or Display Units or something else?  Is that the root of my problem? Thanks ... View more

I have created a Composite Address Locator from 3 Address Locators -- one dual range locator built from the street layer and two single address locators built from layers representing Residential and Business address points.  The composite locator has been published as a geocode service to a 10.1 ArcGIS Server running SQL Server SDE. I can do FIND ADDRESS search from the REST services page and for the service and results are being returned.  However, there is no indication as to which sub-locator actually returns the result.  Is there some way to get that from the REST Service? In testing I used an address that returned two items that scored 100% on the return.  One was from the residential locator and one from the streets locator.  The returned points were not the same as the streets return was interpreted while the residential locator was the "exact" location of that address.  The item that was returned first was the residential and the second item was the street as that was the order I defined the composite locator.  However, I would like to know whether the return was the residential, business, or street locator. ... View more