0
votes
0answers
2 views

Issues with Near 3D in Spatial Analyst

I have recently run a Near 3D process using points as the input feature and a complex polygon as the Near Features. All coverage's have z values interpolated from the same DEM and the project and all ...
3
votes
2answers
51 views

Calculating the visibility of an observer walking a line transect

I was wondering if anyone can help. I'm want to calculate the visibility for an observer doing a bird survey by walking 1km transects broken up into 200m sections. I want to calculate the visibility ...
2
votes
0answers
22 views

Is there an easier way to capture polyline elevation data?

I am in the middle of migrating a watercourse network dataset from AutoCAD map 3D to ArcGIS 10. I have been able insert the various streams/rivers/nodes into arcgis and project the associated ...
1
vote
1answer
27 views

Connecting isolines (i.e.points of equal value) in 3D scene using ArcGIS for Desktop?

I have a point shp theme with fields Lat, Long, Altitude (m), and Number. The Number field – is a numerical parameter of each point (Lat, Long). The Altitude field – is the parameter of elevation of ...
2
votes
1answer
55 views

Displaying numerical values as symbols on 3D map in ArcMap or ArcScene?

I have a point shp theme with fields Lat, Long, Altitude (m), and Number. The Number field – is a numerical parameter of each point (Lat, Long) The Altitude field – is the elevation of each point ...
1
vote
1answer
70 views

Distance analysis of 3-D surface in ArcGIS using VB.NET

Using VB.NET I created a 3D polygon in ArcGIS to model a fault plane and now I want to find two different distances from a point on earth's surface. How to go about this? Can some one help with the ...
0
votes
1answer
34 views

How to create a TIN in arcGIS from 5 points using VB.NET

I am asking this question as I do not have any experience in VB.NET coding. I tried to follow ESRI help but I did not quite understand it. I have 5 points with X,Y and Z dimensions. How to add these 5 ...
0
votes
0answers
47 views

Advice on how to present a cross section

So, I'll try to best explain what I want to do. I have a DEM of a volcano (only showing half the DEM in pictures below) and I have identified a lava flow that I would like to make a cross ...
1
vote
1answer
46 views

Fixing Hole in DEM?

I have what looks like a hole in my DEM! I don't think it is affecting my calculations, but either way, I would quite like to correct it. Does anybody have any idea how? Please see the attached ...
0
votes
0answers
72 views

Problem with Elevation Profile Graph

I have a problem when creating the elevation profile using 3d Analyst. I have a DEM and a polyline representing a a highway route consisting of several line segments that I have manually combined. I ...
1
vote
1answer
103 views

How to display Arcscene polygon extrusion edges?

When I extrude polygons in Arcscene 10.0, the polygon outlines are not displayed regardless of the symbol outline width/color. Thus the extruded edges are not shown. Here's a screenshot showing the ...
4
votes
1answer
203 views

How to add tree height values to raster / vector data?

I am new to working with raster data and I am trying to teach myself a few things. I have what I think is a simple problem but I can't seem to figure this one out after a few hours of searching Arc ...
3
votes
1answer
74 views

Split single line based on the 3D length

so I have a transect line which I already add the z value using the Interpolate Shape. I need to split this line into 100m in 3D length, which due to elevation must be different than 2D. However the ...
1
vote
0answers
122 views

Why isn't View>View Settings working in ArcGIS 10 ArcScene?

I am running ArcGIS 10 desktop verison with the 3d Analyst extension to view DEMs in ArcScene. I want to view the DEM from a specific xyz location, which should be achievable using the View Settings ...
1
vote
1answer
61 views

arcGIS observer point analysis: Exceeding maximum allowed points amount not exceeded

I need to make an observer points analysis (3D analyst tool). I have a shapefile of 22 points, so I divided it in 2 layers of 11 each as the maximum points allowed is 16. However, as I launch the ...
2
votes
1answer
204 views

How to improve Triangulated Irregular Network (TIN) display speed?

I am preparing Triangulated Irregular Network for large area (5000 Sq Km) in ArcGIS, The TIN models takes too much time to open in ArcMap, and if I move or change anything again its starts to ...
2
votes
1answer
961 views

ArcGis 10 interpolate Z between polyline's vertices (IZ.InterpolateZsBetween ?)

Here's what's happening: I want to create a 3D line using only the height of some GSP points. I need to be able to extrapolate the vertice's height between where it's known to the one where it's ...
5
votes
1answer
108 views

Can 2D polygon be used as hard breakline for terrain?

I've been working with TINs for years and have only ever been satisfied when using 3D polylines for breaklines. I am currently transitioning to using terrains and after reading the documentation in ...
2
votes
1answer
264 views

How to find area of Digital Elevation Model above/below a reference plane?

I am using ArcGIS10. I need to find the out the area which is below 5000 and above 5000 from the Digital Elevation Model which is available to me. How can I find out this ? My DEM ranges from 8848 to ...
1
vote
1answer
103 views

Can't select or delete 3D contours - ArcScene

I used the "Create Contour" icon in 3D Analyst on a TIN. But now I can't hide, select, or delete those contours. I even tried deleting the base TIN to no avail. ArcScene 10.0. Any help please? ...
0
votes
1answer
490 views

How to represent multiple values using 3D Analyst's Interpolate Line Tool

I have a related question (found here - Creating line transects for sampling across raster and vector data (stack profile)) but I think it is worth posting this as a separate question. I need to ...
1
vote
2answers
545 views

Creating a 3D line feature based on 3D point features

In ArcGIS for Desktop 10.0, is it possible to create a 3D line feature by drawing a line that connects 3D point features?
0
votes
1answer
269 views

TIN Classes to a layer ARCMAP 10

Just wondering if there is a method of creating a layer for each classification range in a TIN. Another way to state my problem: I would like to make each colour code a layer that I can "turn on and ...
2
votes
1answer
981 views

How can I import AutoCAD 3D solids into ArcGIS?

I have an AutoCAD drawing that contains contours and 3D solids. I am able to import the contours (which i don't need) but not the 3D solids (which I do need). I understand ArcGIS does not support ...
5
votes
1answer
1k views

How to calculate the flood volume using a LiDAR DEM and a HEC-RAS floodplain polygon

I’ve got a vexing GIS analysis problem which is conceptually fairly straightforward, but in reality more challenging to figure out…. Basically, I need to calculate the VOLUME of floodwater within a ...
1
vote
0answers
104 views

Clear or Disable Cache in ArcObjects Globe Control

Is it possible to clear or disable the cache for individual layers on the AxGlobeControl? If so, how? I would like to be able to do this programatically through ArcObjects.
6
votes
2answers
2k views

How to calculate stream order for vector data without a DEM?

I have a shapefile which contains the streams that were digitized from a satellite Image. I would like to calculate the stream order for this data. The data does not exactly match the DEM that I have, ...
5
votes
1answer
531 views

How do I cast shadows from 3D Objects in ArcScene?

I would like to cast shadows from my 3D objects in ArcScene onto the surface and other objects. (Much like I can in SketchUp). Is it possible? If so how?
4
votes
1answer
890 views

Can I view ArcScene 3D models in a free viewer such as ArcReader or another 3rd party viewer?

I would like to build a complex 3D model in ArcScene, export it and send it to someone else that does not have ArcGIS with 3D Analyst. The idea is to interactively navigate the model during a ...
8
votes
2answers
2k views

Can I create, union and intersect 3D multipatch features using 3D Analyst extension (ArcGIS 10)?

I'm on ArcGIS 10. According to all the documentation I've read, 3D Analyst should be able to do what I am trying to get it to do, but I am running into problem after problem and I'm almost ready to ...
1
vote
0answers
144 views

How do you specify the width of a column that has been extruded from a point in arcscene?

I've extruded a set of points based on a z variable but I want to increase their width so they're easier to see.
5
votes
3answers
1k views

How to make 3D building models from lidar data?

I have Lidar data, ground points and first returns. I have processed it and have ready tiles from which I am trying to build 3D building models. So far I was able to just extrude the buildings in ...
5
votes
1answer
393 views

Why does the 3D Analyst 2D export renderer create anomalies?

A lot have been improved in the 3D Analyst 10 including the ability to export large scenes as large 2D images. However, some problems still exist one of which is: When I export a scene that contains a ...