Latest Contributions by JakubSisak

What should be the input polygon layer? How can I define the area between surface and bottom tins? The Input Polygon layer is basically the 2D (Plan View) Area of interest, or the most outer extent of your model. Help on "Extrude Between" provides an explanation on this including a figure with visual... ... View more

Do you need to create the polygons or do you just want the areas between each isobath to be symbolized.  (see attached for visual) In the TIN symbology add only the elevation and remove everything else, then choose "Classify" under the symbology tab. Under Method select Defined Interval and under interval size type in the desired interval (1 for 1 metre for example). After you OK choose a graduated  ramp, Dark Blue to light blue for example. You can then create TIN Contours from the same TIN and overlay.  If you use the same interval as you did for symbolizing the TIN, the contours will match the symbology. You can also do the same with a raster surface. ... View more

This is normally done by extruding between 2 surfaces which created a multipatch geological layer. You will need 2 TIN surfaces (top surface and bottom surface) and a polygon layer containing input features that defines the area you wish to extrude. See Toolbox -> 3D Analyst Tools -> TIN Surface -> Extrude Between ... View more

Hi everyone, I have a dataset which have x,y,z of each point. In other words, base on these data I have the the thickness of different geologic layers. I want to create solid geologic map in 3D in ArcGIS. I tried to install "BlockDiagram" from the link below, but I could not. Does anyone know how can I install this extension. http://arcscripts.esri.com/details.asp?dbid=12632 Please help me if anyone knows other ways to create 3D solid geologic map. Thanks Mina This is normally done by extruding between 2 surfaces which created a multipatch geological layer. You will need 2 TIN surfaces (top surface and bottom surface) and a polygon layer containing input features that defines the area you wish to extrude. See Toolbox -> 3D Analyst Tools -> TIN Surface -> Extrude Between ... View more

Attaching an updated version which includes the option to extend end-nodes by the buffer value Also attached is a result of this function; 3 lines buffered by 20 and 100m. One image shows the result when extended parameter is true the other one is with the extended parameter set to false To run this script: Open VBA Editor Create a new Module Paste code into the module Create a custom button and open the click procedure write a call statement to Create_Flat_End_Line_Buffer and include parameters run debugger and add missing  references if needed Select one or more polyline features in the Map document Start Editing and set a target layer to your destination polyline layer Parameters: first parameter is the buffer size, second parameter is either 2 for mitered or 4 for beveled, last parameter either true to extend line or false not to extend (Extending means that the end node of the line being buffered is extended outward in the direction of the last segment prior to buffering. This will create a square buffer around the end node rather then ending the buffer at the end node) Limitations Polyline input only Polyline output only (resulting buffer is a polyline) Result of one operation is 4 features: left site, right side and 1 line on each end (merge to close) For other limitations consult ArcObjects help: IConstructCurve3:ConstructOffset ... View more

Hi, the only output format possible from ArcScene is VRML. I don't know how to export to CAD. Is it need a plugin? ArcToolbox -> Conversion Tools -> To CAD -> Export to CAD ... View more

Also most states have free aerial imagery that is provided by the state on a "GIS Clearinghouse" website. Usually these images are way better than Google Imagery and easier to manage. Microsoft's Bing has aerial imagery for the entire world that is very comparable to Google Earth. I've heard this question come up alot and I have to ask why try and use Google Earth imagery when there are better and easier options out there? I'd like to correct that.... BING does not have high resolution aerial imagery for the entire world.  There are vast areas in Canada not covered by high resolution Google imagery and BING offers even less coverage. Purchasing Quickbird satellite imagery is the only option for many remote areas up here and we're not even that far up north where Landsat 7 is still the only available option.  The lack of availability of decent aerial/satellite imagery is a huge problem for us especially considering the minimum price for Quickbird imagery is about 400USD/ 25 sq km.  And at least in Canada there is also no free or inexpensive aerial imagery available. (Landsat 7 and SPOT 4 5 and 30m resolution DEM are free but only Landsat 7 covers the entire country) I am aware that the US has a great coverage and availability of imagery as well as high resolution DEM but this is certainly not the case up here. ... View more

So i realized that some people have had similar experiences with accessing TINs on the network. (Created on local hard drive then moved to network and not being able to open the TIN)  My issue seemed identical; i see the data, it even has the correct icon in arcCatalog but i can't view the TIN or open it unless i move the data to the desktop (or other location on C) I realized that for the last 2 years i have been using Symbolic Linking.  All my data is stored on dedicated data drive but a symbolic link is used to make all projects appear as if they were residing on the C drive. This is because i added the dedicated data drive after i have been storing all of my projects on the C drive and it would have otherwise taken me long time to re-link each document.... Long story short; if i add the data from the physical location not via the Symbolic Link, the TIN loads fine. ... View more

Strange. I moved the folder that contains the TINS to the desktop and i can view them fine. ... View more

This is true.  What i do is to select just those objects that were not exported then export into new Sketchup model then copy and paste. I know, a crude solution. Another option is to export your model into CADD with ArcGIS then import into sketchup. (will probably need a Pro version of Sketchup for this) The plugin was developed by Google so you will get no support on this from ESRI. ... View more

Here is a solution using IConstructCurve3:ConstructOffset see attached If anyone is interested i also completed additional script that extends the line end by the buffer value then constructs the flat-end line buffer. ... View more

I would use TIN not a Terrain dataset. Create 2 TINS - 1 in full resolution, 2nd generalized. Convert both to nodes. Delete all nodes from the 2nd "generalized" layer where you need high resolution data. Select nodes by location from 1st "high resolution" copy and paste into the 2nd "generalized" layer You will now have a layer containing low resolution nodes and high resolution nodes in some areas. Create a new TIN from this layer. If you need to add a high resolution edge to this dataset i would create a 3D outline using the high res TIN then add this to the final "Combined" TIN as a breakline. ... View more

I never tried the folowing script but it might be what you need: http://arcscripts.esri.com/details.asp?dbid=15173 Also, have you tried modeling the buildings into a TIN surface then converting the TIN to Raster and running viewshed? Building can be put into a TIN surface but i believe that the walls need to be very slightly slanted. Create the footprint and give them an elevation then create the top outlines (i tried buffer -0.1m) and give elevation value. Convert TIN to nodes, remove all nodes that intersect footprints. Then create the tin again using the nodes and the footprint and top of building outlines. After this you might need to add just the footprint breaklines to the TIN to correct any triangulation anomaly. Finally conver TIN to raster and run viewshed analysis. I have not tried this with viewsheds nor have i tried converting such TIN results into a raster but i frequently model man-made structures into surface TIN models using similar techniques then use the resulting surfaces for various analysis. ... View more

Dear friends i am using Arcgis 9.2 version. i want to show a geological cross section in ARCSCENE 3D mode. i have georeferenced satellite image with me. i want to show a subsurface section  in such a way that the geological cross section hang out from the georeferenced surface satellite image. Can anybody help me in this regard You will probably need surface data to drape the image on to show the surface terrain characterics as well as the image.  What do your subsurface data look like? You might need clip each subsurface geological layer (multipatch) with the shape that outlines where you want to show your section. This can probably be done with the input TIN's prior to creating the multipatch layers. ... View more