Latest Contributions by MiguelSilva3

Hello Dan; Thanks very much; I followed your suggestion and I searched in Google. Another idea I had is that maybe City Engine ocudl have  a solution for that. Best Miguel ... View more

Hello Emma; I am a relatively new GIS practicioner; however, I would like to bounce back to you some considerations/comments/ideas which may work. First, lets try to find data entry errors, using map topology to check the relationship between parts of features that are coincident (are you sure that lines representing pipelines snap at the right point (i.e. no under or overshoots, no node mismatch or dead end nodes, etc). To do so you will need to create a map topology, with that and some detailed visual inspection you should be able to identify errors and correct it. Additionally, you could control spatial data integrity by imposing some rules (geodatabase topology)  Once you will do so, then the next step will be to correct the errors, for which there are several methods, depending on the error type. I hope that this helps, at least to get started on a methodology that could help you to identify errors. Good luck Miguel ... View more

Thanks..,do you have any experience with Aspect and Slope; in ArcScene the results are not quite intuitive: Thanks ... View more

It worked!...thanks for your help...I just needed to be more methodical and follow the basic steps; here there is what I got: I am having some trouble with the colors, do you have any suggestions? ... View more

Here is what I am doing to ensure I'll get it right: I added four benchmarks to the area I want to export as image on Google Earth (I did email the image to myself) I wrote the coordinates in deg min sec coordinates I converted min deg sec coordinates into UTM (WGS84 - WGS-84) I opened ArcCatalog and selcted the Image I imported from Google Earth: I built pyramids and calculated statistics I opened ArcMap and set up the Data Frame coordinates to WGS_1984_UTM Zone 15N I brought the image into ArcMap I enabled the Georefencing tool and ensured that the Image name was on the dropdown field I opened the Link table and unchecked the Auto Adjust box and proceeded to create temporary links on top of each one of the benchmarks for which I recorded their coordinate I updated the Xmap and Y map fields on the link table with the UTM  coordinates, selected Adjust, went o nthe Georeferencing menue and selected Affine Trasnformation I zoom to extent and look at the bottom right corner for the coordinates, which now were consistent with what I entered in the link table; then I updated teh Georeference I selected Data and chose to export the image and save as a different version I Defined the projection for the new image and imported the information from the contour file I have I changed the Data Frame properties and imported the coordinates from the contour file I removed the original file and brought into the Data Frame the contour file: I think it should work now, I am going to generate the DEM and then take it into ArcScene and see what happens Thanks for your help and stay tuned ... View more

That makes sense...I will start from scratch again ... View more

Thanks...I already sent copy of Metadata;  Ia musing same GCS and projection for both files; still they are far apart ... View more

Thanks for your prompt response; please find attached screen capture for both files Metadata (extent and spatial reference). I noticed that the extents are different for both files...big time!  The first one is the image and the second one the DEM;both are in meters ... View more

Hi Stephen it worked perfect. I have one more question, do I have to have as shared the maps I use within Apps so people to whom I sent the App could see it too? Thanks a lot for your help and Merry Christmas Miguel ... View more