Latest Contributions by JimCousins

Yes. You need to: 1) Create a new text file with the appropriate name in the same directory as the CAD file. 2) Use open(outputfilename, "w") to open the new text file for writing. 3) Write your information in the appropriate format a line at a time 4) Close your output file. If you have never worked with file I/O: http://en.wikibooks.org/wiki/Non-Programmer's_Tutorial_for_Python_3/File_IO Regards, Jim ... View more

Hello, Greg. Resolution: You can always right click a layer, go to Properties>>Source. 3rd entry is the Cell Size. (1/9th arc second data is approx. 3 meters) See where the points were collected: No. The NED is an interpolation result. You would need the original dataset to see actual collection locations. ArcGrid vs GridFloat: ArcGrid is an integer grid, whereas GridFloat is a floating point grid. Basically no decimal places vs decimal places.(float also can store a larger number). Regards, Jim ... View more

Use a Try... Except statement. This allows you to handle exceptions, like not having any layers to findAndReplaceWorkspacePaths on. Using this will allow you to continue on past the empty map documents. ... View more

You could use the information you have to create a CAD World file. ... View more

How are you creating the PDF, printing out of ArcMap or exporting? Try switching if you can. If you have Adobe Acrobat, try printing the pdf to a new pdf, and see if that cleans up the file, or if the line is then visible in the new file. I take it that this is a specific mxd, not every one you produce? You might check and repair the geometry of the shapefiles, and see if this goes away. Regards, Jim ... View more

Do you have access to 3D analyst, or spatial analyst? 3D analyst: "Interpolate line" and then "Profile Graph" Spatial analyst: Create a line, then use the Densify tool in the editing toolbox to create vertices along the length. Convert the line to points. Use Spatial Analyst >> Extraction >> Extract values to points. Graph the point xyz. Regards, Jim ... View more

Apologies, you are adding a picture element to a layout. How about adding a new dataframe, add the picture to the dataframe as a raster layer, then set the background to transparent. You can also set the dataframe frame to no color, so visually the logo is free floating, as you can move the dataframe and hence the logo where ever you want to on the layout. Jim ... View more

Under the symbology select "Display Background Value" box and enter the RGB value for the color you want transparent. Leave the background color fill as none. Regards, Jim ... View more

Interesting, I had not used that before. Found this post: [TABLE="class: forum"]Subject[TD="class: postvalue"]Re: How to scale features by setting an absolute scale factor. [/TD] Author[TD="class: postvalue"]Ray Carnes [/TD] Date[TD="class: postvalue"]Dec 28, 2005 [/TD] Message[TD="class: postvalue"]See how you go with this: Divide the final area by the original area and take the square root of the result and use it as your scaling factor. ie: You want the final polygon to have an area of 50,250 square units and it currently has an area of 10,000 square units. 50250 / 10000 = 5.025 and the square root of 5.025 is 2.2415612. Use 2.2415612 as your scaling factor. Ray Carnes, ESRI Technical Marketing. [/TD]   [/TABLE] ... View more

Yes. Add the streetmap data to a map (or any basemap data you have accesss to). Zoom to the location this data should reside. add the CAD Data. It will be in the wrong place. Begin guessing the coordinate system ie: start changing the data frame coordinate system. Go through UTM and State Plane, NAD83 and NAD27(less likely these days), and feet and meters. If your CAD data shows up where it should be, then that is the coord sys of your CAD file. Good luck, Jim ... View more

I use the Zonal Statistics as table. I typically need more than 1 statistic, and this tool will alllow you to return multiple stats with 1 run. Regards, Jim ... View more

Nadeem, You will have to create a new column and calculate the values equal to the OID Column. The OID has to be a unique identifier, and clip analysis has the potential to split an existing feature into multiple parts. Therefore, the OID is recalculated for the output dataset, to insure they are all unique. However, if you create the new column, it will carry over to the result output. Regards, Jim ... View more

How about simply making the workspace a parameter of the model, so it gets set before running? Regards, jim ... View more

Look into Data Driven Pages, and also into Page Definition Queries. The combination will do the pan or zoom from 1 state to another, and set visibility for your other data. Regards, Jim ... View more

Based on the image output you provided, it appears that you are using the default settings for the hillshade. Select the box for "Model Shadows", and your result should be more like the upper image you are trying to replicate. The resolution is a product of the environment settings, so check those and be sure you are not downsampling. Regards, Jim ... View more