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Questions tagged [tin]

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

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SurfaceVolume 3D Unit

In ArcMap 10.3 I calculated the volume of a valley below a sepcified height. Therefore I try to figure out in what unit the volume is calculated in the SurfaceVolume-Tool. I like to know, if the ...
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17 views

Specify output data type from TIN interpolation

Is it possible to specify the output data type when running a TIN interpolation in QGIS 3.0? I don't see any options I can use to specify the data type, it is defaulting to float64. I need the ...
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43 views

Attributing height data from points to Polylines for Tin creation?

I have to make a TIN of water surface height from about 170 points which have been collected from RTK along a river. The points however are few and far between and rarely on the opposite banks to ...
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1answer
110 views

cesium quantized mesh generator

We are trying to develop pur own quantized mesh generator and visualize these terrain tiles on CesiumJS. As an input we use SRTM data that belongs to north parth of TURKEY. We generate contours on DEM,...
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1answer
47 views

Blocky Raster from TIN. How to increase resolution?

So i am trying to create a seamless DEM using a DTM created in pix4d with a 5cm resolution (Raster). I have then collected RTK bathymetric data which i have turned into a TIN below To create a ...
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40 views

Seeking inexpensive GIS software that can export TIN files to AutoCAD? [closed]

I'm an architect who would like to be able to download 3D terrain info and then bring it into AutoCAD 3D for use in renderings and animations using a couple of rendering/animation softwares called ...
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137 views

TIN interpolation problem

I made a TIN interpolation of some height points but the resulting raster appears with some weird lines (like in the pic) What can i do to avoid this result? Here are the input parameters. Sorry ...
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39 views

Polygons hull QGIS [duplicate]

I'm currently working with old french cadastre on QGIS, I've vectorised it and now I want to tile it. I've georeferenced it, but it's not sufficient for a great result. To improve the result, I would ...
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27 views

my search engine is not responding in arcgis [closed]

I am unable to use the search engine in ArcMap. I am trying to create a TIN but when I type TIN (Triangulated irregular networking) into the search space ArcMap doesn't respond.
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46 views

Removing triangles that fall into the concave but exterior part of polygons in ArcGIS Desktop?

I have created TIN for all the polygons in a block and then converted it to feature layer in order to be able to delete the triangles that fall in the polygons. Now I want to remove triangles that ...
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1answer
62 views

ST_Overlaps for 2 TIN geometries

ST_Overlaps, ST_Contains, ST_Touches, ST_Within works for TIN with point data. But, when I try with 2 TIN it gives error. Could you please help me understand the reason for failure and how to fix it. ...
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1answer
77 views

Choosing geometry to store tin format data to support spatial queries?

What is the best way to store 3D TIN data in postgis, to support queries like st_intersects, st_within, st_overlaps, etc. I can't use TIN since it only supports st_intersects.
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173 views

loading TIN to QGIS

I like to load a TIN (triangulation) in to QGis. The format of my file is as following: (the file is in GMS format). For each node, a line that starts with ND and then three floating point numbers for ...
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180 views

ADF Raster File to TIN Points?

I received a folder containing different .adf files ranging in size. My task is to turn this into a TIN file which then I can bring into Microstation. I have searched the web for days and it all ...
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1answer
2k views

Converting LiDAR point cloud to 3D mesh?

I have an unstructured point cloud of a street in LAS format (.las), scanned from a driving car. The point cloud also stores RGB information. Is there any software that can convert the point cloud to ...
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1answer
186 views

Interpolate (TIN) within a polygon extent QGIS/GRASS

I am trying to interpolate (TIN) in QGIS to produce surface models. I need to interpolate within a polygon area extent. The options available in QGIS do not allow this as far as I am aware. Is there ...
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59 views

Generating TIN from elevation data in Java [closed]

I would like to generate TIN from standard elevation data in Java. Are there any libraries I can use? I could not find any just by googling. In addition library should be suitable for commercial use ...
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2answers
201 views

Extrapolating surface in ArcGIS Desktop?

I'm trying to calculate the volume of a landform under water in ArcGIS and here's what I decided to do: Convert the raster of the bathymetry that I had to a gridded point dataset using Raster to ...
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71 views

Tiling triangulated irregular network (TIN)

I want to generate vector tiles for TIN which I created from elevation data. I want to use Tile Map Server (TMS) specification for vector tiles. But I did not understand how tile bounds can be ...
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1answer
179 views

PyQGIS interpolation classes and triangulation file without interpolation raster

I am trying to interpolate lines using Interpolation plugin in QGIS. There is an option for exporting triangulation file. I don't want to create raster interpolation. In this case, I want only ...
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1answer
77 views

Creating a TIN from beach profiling data

I'm a university student and have some experience with GIS but not loads. For my dissertation I am measuring beach profiles, using a dumpy level surveying technique, of some nesting habitats for the ...
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1answer
113 views

How to add TIN surface Z values into Z field of line vertices in ArcGIS Desktop?

I want to transfer Z values of TIN surface into Z field of line vertices. This line feature class is covered by this TIN surface. I used interpolation shape tool but this tool is disrupting line ...
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1answer
156 views

TIN interpolation errors and weird lines [Qgis 2.18]

I want to create an elevation model in EPSG 4326 from 2 shapefiles [img0] : elevation lines [Altimetria linee Antrodoco] and elevation points [Altimetria punti Antrodoco], both obtained by the ...
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1answer
246 views

Converting 3D shapefile to TIN

I have a 3D building model (Polygon ZM) that I would like to turn to DEM, following the accepted answer to Elevation data from 3D shapefile of buildings to raster DEM According to the description, ...
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2answers
268 views

Creating TIN says Maximum number of data points has been reached?

I am trying to create a TIN layer based off of a DEM. I watched a video about going to the "Base Height" section of the layer properties and selecting "Floating on a custom surface" to create a ...
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1answer
175 views

Slow rendering of tin of large area in ArcMap?

i am using ArcGIS 10.3.1 and working on TIN generation for entire H.P(India). I have downloaded DEM & generated TIN but it is very slow and when I am doing anything the entire TIN starts forming ...
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1answer
58 views

Calculating TurfJS planepoint values for a set of points / Get containing feature with TurfJS

Turf.planepoint() calculates the z value for a point that falls on the plane of a triangle. I am struggling to make this work with a tin from turf.tin() and a set of points. Is there a turf function ...
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80 views

how do I fix this QGIS TIN error?

I'm trying to interpolate a point file that comes from a surface water model output. Each subgrid point has an elevation, and that was used with the cell water levels to generate values for percent of ...
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60 views

“Raster to TIN” in open source [duplicate]

I would like to create TIN from raster DEM. In ArcGIS I would use "Raster to TIN" function, but I would like to do it in open source software. Is there any possibility how to create such a tin?
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93 views

Display points with lowest elevation within a 1m2 grid - QGIS 2.18.2

I have a few thousand points measured with totalstation from an archaeological site. The points are measured quite unevenly which makes TIN triangulation and subsequent DEM generation a mess. Some ...
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0answers
347 views

Interpolation of point data gives no data values in QGIS 2.18 [closed]

I am for the moment, quite stumped. I have a layer of points to which i have retrieved values from an underlying raster. From these values, I am trying to create a TIN, using the Interpolation tool in ...
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1answer
118 views

Creating TIN raster from point layer from Google Earth in QGIS?

I created height layer from google earth from https://www.youtube.com/watch?v=bLbY3iMBW-A. The attribute table of the layer is: The "ALT" field is the height from. My problem is when i try to ...
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2answers
123 views

Making a TIN from an orthophoto

In ArcGIS for desktop I'm trying to create a TIN from an Orthophoto that has control points, the photo is high quality and has a huge amount of control points. I'm just having issues creating the TIN ...
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2answers
521 views

How can I create a fill beneath my 3D surface in ArcScene?

I came across this image on http://desktop.arcgis.com/en/arcmap/latest/extensions/3d-analyst/choosing-the-3d-display-environment.htm I would like to create something similar that shows the below ...
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1answer
447 views

How to compare a TIN and IDW-derived raster DEM quantitatively?

I'm a student and got the assignment to compare a TIN with a height raster 'quantitatively' and I'm not quite sure how to proceed. I tried subtracting the one from the other but it doesn't seem to be ...
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2answers
2k views

Open source tools to create quantized-mesh tiles for Cesium?

I'm looking for a tool or toolchain to generate quantized-mesh-1.0 tiles that can be used with Cesium. Possible formats for the terrain source are LAS, ASCII Grid or simple XYZ files. As a first try, ...
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1answer
467 views

Converting TIN to Multipolygon in PostGIS?

ST_Tesselate returns TIN geometry. But then I need to use other software to process geometry data and it only accept (multi-)linestrings and (multi-)polygons. Is there way to convert TIN triangles ...
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1answer
618 views

Creating Tin from Features? [closed]

I'd like to find in QGIS the same tool as in ArcGIS "Create Tin from Features" from the 3D Analyst Toolbar. How can I do that ?
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1answer
60 views

How to change TIN values view in QGIS

I created a TIN raster for an height values. The color ramp is: but i want to delete all the zero numbers and stay with only integers like this( i do it manually in the layer properties): How can i ...
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1answer
248 views

Setting height field in Create TIN" tool in ArcMap when using it in model?

When using the tool on its own, you can pick the height field manually. I want this choice to be an option in a model, however I cannot add any parameter for the options in the box. Is this somehow ...
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384 views

Projecting 2D (poly)lines and polygons on point cloud or (tri)mesh (TIN)?

I'm searching a way to project 2D (break)lines and polygons (they are in an Esri shapefile but I can translate them to something different if needed, like geojson for example) on a point cloud (seems ...
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1answer
54 views

How can I add features to a GRID raster dataset?

I am using a high resolution GRID, but unfortunatelly have realized I have portions of no data within it. As a solution I have decided to create and add the elevations myself for some of the areas. In ...
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104 views

Understand ramp color interpolation using QGIS 2.12

I try to understand the color ramp in TIN and IDW interpolation. I work with height points layer. The low value in 8 and the highest value is 584. With the interpolation plugin i create TIN raster ...
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1answer
1k views

Exporting ArcGIS TIN file to *.tin file?

How can I create a .tin file from a ArcGIS TIN file? I can't seem to find a export to .tin solution.
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1answer
56 views

3D Analyst tools (TIN)

I have created an elevation contour (topography) with TIN using a spreadsheet of coordinates and elevations of some points. now I want to find the elevation of a new point with these contours. how can ...
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0answers
120 views

Optimum Path finding (for Cross Country Movement) using TIN

I am working on path finding algorithm (using A*) for cross country movement (not for road movement) on map using grid based approach. Algorithm supports path calculation considering slope of terrain. ...
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1answer
144 views

Tin created from raster have different profile graphs?

I have created a TIN file from a Raster one, but the profile graph from TIN is different from the Raster. Here I attach a image where in the left is a profile graph from the raster, and on the right ...
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1answer
495 views

Raster to TIN error

I have a big raster file (6,5gb) that I am trying to convert it to TIN format. What happens is that after 15-25 min of processing I get this error message Can someone tell me how can I fix this?
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319 views

QGIS estimate height of feature vertices from TIN

I have a TIN representing a digital terrain model, and another polygon layer representing features (e.g. building outlines) which is assumed to 'sit' on top of the DTM. How do I calculate the ...
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54 views

ArcScene Extruding between constant TIN's to calculate bed volume within oil window?

I don't seem to be able to extrude between two TINs created from constant rasters. Will the extrusion tool not work between TINs which are copied and pasted and altered in position by me after their ...