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jawensi / DEMto3D-QGIS-Plugin

Extensión GIS para impresión 3D de MDE
http://demto3d.com/
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STL export a rectangle #30

Closed yceballost closed 2 years ago

yceballost commented 2 years ago

Hi!

I'm trying to use this plugin with QGIS but when I use it, a rectangle is exported in .stl.

image

  1. I import .asc file in QGIS
  2. Open DEMto3D

image

Any help?

Thanks in advance! And thanks for the plugin!

AndySwiss commented 2 years ago

I have the same problem

image image `General Name Bel4 Path C:\Bel\Bel4.tif Sidecar file Bel4.tfw Total size 2.20 GB Last modified lunedì, 17 gennaio 2022 02:37:28 (Bel4.tfw) Provider gdal

Information from provider Extent 2721999.9899999997578561,1116000.0000000000000000 : 2723000.0099999997764826,1117000.0200000000186265 Width 33334 Height 33334 Data type Float32 - Thirty two bit floating point GDAL Driver Description GTiff GDAL Driver Metadata GeoTIFF Dataset Description C:\Bel\Bel4.tif Compression LZW Band 1
STATISTICS_APPROXIMATE=YES STATISTICS_MAXIMUM=480.14999389648 STATISTICS_MEAN=290.77781378413 STATISTICS_MINIMUM=222.44999694824 STATISTICS_STDDEV=62.555380775828 STATISTICS_VALID_PERCENT=99.88 More information
TIFFTAG_ARTIST=created by LAStools (c) martin.isenburg@rapidlasso.com TIFFTAG_SOFTWARE=LAStools is a product of rapidlasso GmbH, Germany Dimensions X: 33334 Y: 33334 Bands: 1 Origin 2.722e+06,1.117e+06 Pixel Size 0.02999999999999999889,-0.02999999999999999889

Coordinate Reference System (CRS) Unknown

Identification Identifier
Parent Identifier
Title
Type
Language
Abstract
Categories
Keywords

Extent CRS Spatial Extent CRS: - Projected X Minimum: 0 Y Minimum: 0 X Maximum: 0 Y Maximum: 0 Temporal Extent Start: End:

Access Fees
Licenses
Rights
Constraints

Bands Band count 1

Number Band No-Data Min Max 1 Band 1 -9999 222.4499969482 480.1499938965 `

jawensi commented 2 years ago

Be sure that the CRS (Coordinate Reference System) of the DEM data is the correct CRS. Some users have problems when the CRS of the data was incorrect or is unknown.
Some formats (*.asc) don't contain CRS information, so you have to set it manually. If you dont set a CRS, QGIS read it as if it would be in the same CRS as the canvas.

yceballost commented 2 years ago

I will try during next days, thanks for the advice!

FYI @AndySwiss I was using this online tool that works so good and fast https://touchterrain.geol.iastate.edu/

jawensi commented 2 years ago

Another reason could be that the area to export is to big, and the scale very small. In that case you have to increase the vertical exaggeration to notice relief. I tried to make a model with data from https://touchterrain.geol.iastate.edu/ and I didn't have problems.