# How to directly export an OBJ model from world coordinates

**URL:** https://discourse.vtk.org/t/how-to-directly-export-an-obj-model-from-world-coordinates/10428
**Category:** Support
**Tags:** python
**Created:** [January 12, 2023, 8:50am UTC](https://discourse.vtk.org/t/how-to-directly-export-an-obj-model-from-world-coordinates/10428 "2023-01-12T08:50:56Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Dwight98](https://discourse.vtk.org/user_avatar/discourse.vtk.org/dwight98/32/5373_2.png) [@Dwight98](https://discourse.vtk.org/u/Dwight98)
#### Post date: [January 12, 2023, 8:50am UTC](https://discourse.vtk.org/t/how-to-directly-export-an-obj-model-from-world-coordinates/10428/1 "2023-01-12T08:50:56Z")

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I want to insert points one by one in vtk by longitude and latitude coordinates of WGS84 and generate polygons, and then stretch this polygon into a three-dimensional model，and finally export to obj format for easy use.Hope to give me a detailed step suggestion.Thank you very much