How to create the polygons with the mouse like we do in sketchup

[image] Yash_Joshi: i only need a border (offset) not whole polygon Get points (points only!) of your polygon/contour, apply that OffsetContour function, thus you’ll get a set of points with desired offset.

ok @EliasHasle and @prisoner849 i am close to solution guzs but i have a question let say i have a polygon with the points (2,0,5), (3,0,2),(5,0,5) i am getting a polygon (triangle) while using raycasting i am unable to pick the line on with i clicked it gives me all the lines i need a perfection …

[image] THREE.JS raycaster does not work as expected Discussion THREE.Raycaster() works good with THREE.LineSegments(). Link The code snippet in that SO answer was written with Three.js r89.

fixed already thanks for attention guzs :slight_smile:

@EliasHasle and @prisoner849 i need your help guys , now i want to export this polygon in json format you already aware about how we are creating polygons and than does the import is available and also i have custom geometries so i want there export and import too

What’s the difficulty? You’ve got an object of a polygon with all its info, so you can export it in any format you want.

ok now my question if i export it so while importing i think we need our own mechanism to re create it because i think three js dont have such options for custom geometry and i am now storing it in DB its points but it take time in recreation i want to reduce that time like if a user reload so examp…

The more information about an object and its parts you export, the more precise you can re-create it on import. [image] Yash_Joshi: take it from session some thing like this or from a temp file How do those things relate to Three.js?

@prisoner849 in our polygon if i need a inside or outside offset than is there any way possible like if i give 1 unit so it create an offet at one unit

Are you looking for something like this? [image] OffsetContour function Resources There’s a question on SO: And a forum topic: With some changes of the ProfiledContourGeometry, there is a function which offsets points of a contour - OffsetContour : http://jsfiddle.net…

yes i checked that fiddle but do you think it fits our polygon tool ?

How to join lines to get a shape

Questions

prisoner849 November 2, 2019, 12:54pm 102

Are you looking for something like this?

Topic		Replies	Views
I have draw one polygon when I click on close the polygon at that I am filling with mesh using shape but sometimes my shape is not covering full of the polygon so how can i fix it? Questions materials , geometry	20	831	February 6, 2024
How can I render 400000 polygons mesh? Questions materials , geometry	21	1202	May 6, 2023
Polygon draw dynamically with raycast Questions raycaster	0	980	October 9, 2020
OffsetContour function Resources geometry , vertices	25	5753	June 22, 2021
Modify indexed BufferGeometry (mouse or input) Resources buffergeometry	3	5911	July 21, 2018

How to join lines to get a shape

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