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Results tagged with coordinate-system
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user 17733
A reference framework consisting of a set of points, lines, and/or surfaces, and a set of rules, used to define the positions of points in space in either two or three dimensions. This tag also refers to cartographic projections and coordinate system transformations.
0
votes
How to get appropriate CRS for a position specified in lat/lon coordinates?
There is a website which allows you to know which UTM zone you clicked on https://mangomap.com/robertyoung/maps/69585/what-utm-zone-am-i-in-#
- 525
1
vote
How to estimate the width/height size of output image in a target CRS without gdalwarp?
To solve this problem, one can use GDAL function: AutoCreateWarpedVRT
An example of how it works in Python to get the ul_x, ul_y, lr_x, lr_y and pixel_size_x, pixel_size_y
from osgeo import gdal,osr …
- 525
1
vote
0
answers
396
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Project a subset of GeoTIFF image from UTM 32651 to EPSG:4326 by bounding box in EPSG:4326?
I have a GeoTIFF file which is in UTM 32651 and I need to develop a program, using GDAL library version 1.x (e.g., not using gdalwarp/gdal_translate binary tools) which takes a subset bounding box in …
- 525
3
votes
2
answers
1k
views
How to estimate the width/height size of output image in a target CRS without gdalwarp?
I have a hard problem to find the width/height of a 2D GeoTiff file
which is reprojected from a source CRS (e.g: EPSG:4326) to target CRS
(e.g: EPSG:3857) without running gdalwarp. Because, the file …
- 525
0
votes
2
answers
322
views
Difference results from QGIS project on fly and gdalwarp for EPSG:4326 of Sentinel 2 UTM zon...
I always thought QGIS and gdalwarp should return same result for projecting a 2D Sentinel 2 image (e.g: T32UQD_20200421T102021_TCI_60m.jp2) from UTM 32 to EPSG:4326.
What I did was:
Open the .jp2 i …
- 525
2
votes
1
answer
773
views
Results of gdalwarp from UTM32 to EPSG:4326 are not aligned?
I've a Sentinel 2 jp2 in UTM32 with this metadata:
Files: T32UQD_20200421T102021_TCI_60m.jp2
Size is 1830, 1830
Coordinate System is:
PROJCS["WGS 84 / UTM zone 32N",
GEOGCS["WGS 84",
DATU …
- 525
2
votes
Results of gdalwarp from UTM32 to EPSG:4326 are not aligned?
I wanted to post the suggestions from
Even Rouault from gdal-dev mailing list:
When you don't specify any target extent or resolution, gdalwarp guesses them from the input raster georeferencing a …
- 525