17,878 reputation
336104
bio website linkedin.com/in/…
location San Antonio, TX
age 55
visits member for 4 years, 3 months
seen Oct 17 at 13:56

Programming GIS applications since 1988, primarily using ESRI technology. For more information see my linkedin profile.

My blog is here.


4h
awarded  Notable Question
Sep
30
awarded  Explainer
Sep
29
revised How to Predict demand on a bus route, considering variaton in kms and price?
edited tags
Sep
29
comment How to Predict demand on a bus route, considering variaton in kms and price?
I think this topic (referred to as "Elasticity of Demand") is relevant. Transit agencies have been accused of raising the price of bus transit (used by captive riders) to offset cost of funding rail transit (used by choice riders).
Sep
25
comment How can I delete relationship classes?
See my update. Sometimes deleting an element can confuse the implementation of the enumerator.
Sep
25
revised How can I delete relationship classes?
added 564 characters in body
Sep
23
comment How to Predict demand on a bus route, considering variaton in kms and price?
Do you have any stats to indicate level of transit captivity? capntransit.blogspot.com/2011/10/…
Sep
23
comment How use DataFrame Geographic Transformation User Interface with ArcObjects?
In arcobjects you can scan the list of predefined geotransformations and see which ones transform between the datum of the source data, and the datum of the dataframe. This is done with ISpatialReferenceFactory2.CreatePredefinedGeotransformations. I'm not sure how to access that from python though.
Sep
23
comment How use DataFrame Geographic Transformation User Interface with ArcObjects?
Search around for IGeoTransformation (and maybe edit your question to mention this as well). Here's some code: gis.stackexchange.com/a/14119/59
Sep
22
revised How can I delete relationship classes?
deleted 47 characters in body
Sep
22
answered How can I delete relationship classes?
Sep
18
comment How can I delete relationship classes?
In general, I would avoid deleting items from an enumerator while nexting through it. Instead, I would put the datasets into a generic list, then loop through the list, deleting them.
Sep
18
reviewed Approve suggested edit on Why does the postGIS file lose geometry?
Sep
18
reviewed Approve suggested edit on Zoom to a vector feature in a vector layer
Sep
18
revised Mosaic of TerraSAR-X images using Nest?
added 39 characters in body
Sep
18
reviewed Approve suggested edit on Multiple font markers in shapefiles in QGIS?
Sep
17
awarded  Custodian
Sep
17
reviewed Reviewed Adding Route Shapefile (PolylineM) to QGIS?
Sep
17
reviewed Reviewed How to extract xy coordinates to featuretable using ArcGIS web map/app to create points?
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
It sounds like there are places on the road where events overlap. Are you saying a stretch of road can have many or no events scheduled? In the case of many, then the events overlap have different from's & to's. I.e. pave from mile 2 to mile 5. Restripe from mile 3 to mile 6, could be two rows in Layer1, right?