Acronym for triangulated irregular network. A vector data structure that partitions geographic space into contiguous, nonoverlapping triangles.

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81 views

Is there a way to visualize TIN surfaces for web-mapping purposes?

I have created a TIN data set of electricity consumption. It is visually appealing, and often times TINS help the map reader understand geographical relationships better. Are there methods to ...
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1answer
326 views

If I convert a TIN to a raster in ArcGIS will results from the two versions of the surface be comparable?

I have converted a TIN to a raster. I found that the top of a bund wall shifts laterally in position between the TIN and the raster into which it has been converted using the TIN to raster tool in ...
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2answers
845 views

What is the best method to smooth TIN Surfaces?

I have a 3D Tin which shows avocado sizes as the z-value. The 3D visualization is perfect however, not for our needs as it requires too much interpretation from a end users perspective. How might we ...
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2answers
415 views

Why can't I find the TIN Management tool in 3D Analyst toolbox?

I am looking for the CREATE TIN tool in the 3D Analyst toolbox, but I can´t find it. Any ideas why I can't find it?
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1answer
245 views

ERROR: “Can't save to disk (check for space, write permission, or name)” while creating TIN in memory

I get the following error while creating TIN in memory : ERROR 999999: Error executing function. Can't save to disk (check for space, write permission, or name). Failed to execute (CreateTin). I ...
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1answer
379 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 ...
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1answer
43 views

How to expedite process of creating features

I am creating TIN out of each two cross sections and in the end I merge them all together and create a seamless TIN using python scripting. First I create all the TIN and save them somewhere in my ...
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1answer
348 views

Restricting Tin interpolation in QGIS

I am trying to do a bathymetric map for a lake using QGIS. However, I see no option to impose a mask so interpolation does not extending beyond the boundaries of my lake. I have traced around the ...
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0answers
122 views

Is the TIN created out of several cross sections different from merging the TINs created out of each set of two cross sections?

I have a river with cross sections that have the water surface elevation values. I am trying to create TIN from the water surface values and then compare it with the topo (to see the flooded areas). I ...
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1answer
515 views

ArcScene3D layer rendering problem [duplicate]

I'm having problem with ArcScene. I'm doing a project on the visual impact of felling areas of forest in locations regularly visited/used by people. I have viewpoints and have created a TIN model ...
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0answers
53 views

tin model in Qgis [duplicate]

I am having DSM and DTM data .My primary objective is to develope a CHM(Canopy Height Model) in Qgis.which i have done already but in my company they are stressing that CHM model which i already ...
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1answer
649 views

Can QGIS read ESRI TIN file directly?

Can QGIS open directly a TIN file generated with ArcGIS?
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1answer
291 views

How to calculate volume of bund around pit from TIN and external feature edge

I need to do some volume calculations of bunds. I suppose I should use the Surface Volume tool in 3D Analyst of ArcGIS. Here is the tool description. I am uncertain about the plane height parameter, ...
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1answer
197 views

Extrude Between Tool not working for me

I am having an issue with trying to use the extrude between tool in ArcScene. I had 8-9 geologic formations that I would like to create a 3d polygon of these formations. My workflow process went ...
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1answer
362 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 ...
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1answer
137 views

TIN when generated goes off the limits ARCGIS 9.3

i have to creat TINs for a specific areas so the original points or countours are exactly whithin the geographical limits of the area, but when i generate TIN it goes out of those limits and its ...
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2answers
859 views

Problem creating TIN from multiple contour shapefiles with ArcGIS 9.3 Spatial Analyst

I have about 20 shapefiles that contain contours lines, and I'm trying to convert them to one TIN using Spatial Analyst in ArcGIS 9.3. I included all of the SHP's as input to generate a TIN, but it ...
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1answer
223 views

Making a subsurface TIN model

I had been very glad if any of you have time to help me. I am a student and currently writing a thesis. In this paper I will create a 3D model of a glacier, where I will show the internal structures ...
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1answer
249 views

Extrude between wrong on the edge, ArcScene

I'm trying to extrude between two Tins which are equally shaped. However if Extrude Between those tins using input feature created by minimal_bounding from one of them I get a strange error that two ...
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1answer
1k views

VRML export issue ArcScene

when I try to export simple Tins (or documents which contain Tins) from my ArcScene to .wrl the export fails. Please see my example: I have the following table (xlsx): X Y hoehe 28 -2 0 -2 ...
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2answers
5k views

Can I create a TIN from contours lines (shp) in QGIS?

I need to do a slope analysis, and would like to make a TIN from 2m contours lines. Or do a slope analysis directly from contours? The only DEM available is not precise enough. I do not have any ...
2
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1answer
3k views

TIN Interpolation using a vector layer

I'm writing a plugin in QGIS and I'd like to generate a TIN surface using a vector layer with x,y and z (interpolation attribute). The idea is to visualize the same result like in the Interpolation ...
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1answer
1k views

TIN Creation from 3D Contour File

I'm currently trying to import a 3D contour file into a QGIS project. How can I export the DXF file from Microstation with height information? I already have imported it to the QGIS project but ...
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4answers
1k views

TIN interpolation crash in Qgis

I have problems using the function TIN(linear) interpolation in Qgis. The program crashes when larger areas is interpolated. Map properties: vector map, Geometry typ = Point, features in this ...
2
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1answer
512 views

Script for Editing TIN in Arcgis: modelbuilder works, when exported as script gives an error

Arcgis can give such a headache! I want to automate loads of small tasks, and so I need to edit empty TIN with python in order to create a full TIN. My srcript is giving errors, so I tried by hand to ...
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3answers
1k views

Generating TIN from DEM using MacOSX/Unix tools?

I'd like to generate a 3d terrain model moving from a DEM dataset (currently in shp and GeoTIFF format). As far as I understand it, the first step of the better path would be generating a TIN, but I ...
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1answer
1k views

DEM: How to convert a mosaic dataset to TIN?

I merged several DEMs together in on single DEM with mosaic dataset. Now I wanted to convert this mosaic dataset in Vector with TIN. But when I use the tool (3D Analyst Tool) Raster to TIN comes an ...
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1answer
251 views

Intersect multilinestring (A) with multilinestring (B) retaining linear sequencing in resultset? [closed]

I have a PostGIS table testtin2 which is a sort of pseudo TIN consisting of a single multilinestring geometry, which I am intersecting with another table align, also a multilinestring, to generate a ...
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1answer
8k views

Which is better, DEM or Triangles (TIN/Terrain)

Which is better DEM or TIN? What are the benefits/negatives of each?
6
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1answer
210 views

Representing a TIN in GeoJSON

Regarding the GeoJSON representation of a TIN, are there any specifications or existing implementations I may not be aware of? You could probably hack one together using the multipolygon ...
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0answers
65 views

How to get the nodes on the absolute boundary of a TIN with ArcObjects

I am trying to get only the nodes on the absolute boundary of a Tin. But GetNeighbor or LeftTriangle methods return edges whose nodes have NaN Z and very weird X-Y coordinates, so the row is inserted ...
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1answer
112 views

TINs: What advantage does unequal sampling of data points have over regular sampling?

Triangulated Irregular Networks. Under what conditions is one sampling method more appropriate over the other?
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1answer
391 views

Problems creating TIN from British Columbia DEM data

Is anyone familiar with creating a TIN using ArcGIS9.3 and British Columbia DEM data (.GEN files)? I can't figure out how to get the breaklines to work during the creation of the TIN. Using ...
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3answers
2k views

How to create TINs in ArcGIS from triangular elements

I am working with FEM models with triangular elements, and I'd like to view the results as TIN surfaces in ArcGIS (and in ArcScene). In my external source, I have nodes (with X,Y,Z coords) and ...
7
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1answer
654 views

(Smooth) Isoline Extraction from TIN - Algorithms

Can anyone point me to a clear document or algorithm for extracting smooth isolines from a Triangular Irregular Network? I've seen some examples using the jagged linear methods, but can't seem to ...
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3answers
1k views

getting from a DEM to points that could be used for a TIN

I have a DEM, and would like to create a set of points that I can use to make a mesh for a 3d modeling program, such as Maya, Blender, or SketchUp. If I were to make a TIN from a DEM in ArcGIS, ArcGIS ...
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4answers
443 views

Given a list of surveyor points, what is the algorithm used to simplify the points and retain the terrain characteristics?

Given a terrain and surveyor points sampled from from it or from its contours, is there any algorithm that one can use to simplify the points ( i.e., reduce the surveyor points number) and at the same ...
4
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2answers
796 views

Comparing two TINs created using ArcGIS for Desktop?

I have the following two files: LiDAR las file1 Let's give it a name LiDAR las file2, contains the same file1 data, where number of points randomly removed. So if file1 contains X number of ...
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4answers
1k views

Addition and Subtraction of two TINs

I am referring to the paper here, section 2.6.1. Is there an existing library ( in C++ or .Net) that already has this implemented? Namely, taking two Triangulated Irregular Network (TIN), we create a ...
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1answer
473 views

Performing Overlay of Two Triangulated Irregular Networks (TIN)

I am referring to the paper here, section 2.6.1, on the adding and subtracting of two TINs: The addition of two TINs can be determined exactly and stored into a new TIN, because the addition ...
3
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4answers
1k views

What are Limits on ArcScene and TINs from LiDAR?

I am trying to load anywhere from 5 to 10 LIDAR TINS into ArcScene. I am using ArcGIS Desktop Evaluation (student) 9.3.1. I just built a new computer with a AMD Phenom II X6 1090T six core processor, ...