Click here to Skip to main content

Submit your article

Polygon

polygon

Great Reads

A VB.NET Implementation of the Douglas-Peucker Algorithm without Recursion

by veen_rp

An add-on tip to articles already posted on Code Project

Point Inside 3D Convex Polygon in Perl

by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in Perl

Point Inside 3D Convex Polygon in C++

by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in C++

Latest Articles

A VB.NET Implementation of the Douglas-Peucker Algorithm without Recursion

by veen_rp

An add-on tip to articles already posted on Code Project

Point Inside 3D Convex Polygon in C++

by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in C++

Point Inside 3D Convex Polygon in Perl

by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in Perl

All Articles

Polygon

A VB.NET Implementation of the Douglas-Peucker Algorithm without Recursion

21 May 2016 by veen_rp

An add-on tip to articles already posted on Code Project

computational-geometry

draw polygon in c++ and show its area in output using polygon area formula.

29 Jun 2015 by CPallini

Assuming you are able collecting input from the user, then drawing the polygon is trivial:call moveto(x0,y0); lineto(x1,y1);...;lineto(x0,y0);Computing the perimeter is relatively easy, since, for instancel01 = sqrt((x1-x0)*(x1-x0)+(y1-y0)*(y1-y0));gives the length of the side connecting...

how do I calculate polygons area and perimeter in this program?

30 Jun 2015 by Stefan_Lang

There's a simple algorithm for calculating the area of a polygon:1. Choose one point P1. Interpret this point as 3D point by setting the z-coordinate to 0.2. For all remaining (n-1) points Pi:- interpret Pi and Pi+1 as 3D points by setting the z-coordinate to 0.- calculate the vector...

Point Inside 3D Convex Polygon in Perl

6 Feb 2016 by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in Perl

Hi, I start to learn draw shape with gdiplus, but how do I delete shape from canvas ?

23 May 2019 by Richard MacCutchan

You should do all your painting/drawing to the screen in the function that handles the WM_PAINT message. Each time this function is called it should redraw all the shapes. When a shape is deleted you just remove it from the list of items to draw, and then call InvalidateRect to force a repaint...

How to get list of all markers from selected Polygon using OpenLayer MAP v2

21 Nov 2014 by Sunasara Imdadhusen

I am able to run following features on OpenLayers Map Version 2.xPut Markers on MapDraw Polygon on MapSelect Polygon on MapNow my requirement is when i select any polygon then i would like to show alert box with all marker which are inside the selected polygon.I am using...

How to get list of all markers from selected Polygon using OpenLayer MAP v2

23 Nov 2014 by Sunasara Imdadhusen

I have get Answer from Gabor Farkas from below link:How to get list of all markers from selected Polygon using OpenLayer MAP v2[^]This would be for your reference if you are looking for the same.Thanks,Imdadhusen

how do I calculate polygons area and perimeter in this program?

29 Jun 2015 by KarstenK

The areas can get computed via triangulation: you seperate the polygon in triangles and add their areas. The perimeter is more complex. You need to find all outsides and add them.For that you may look for some algorhitm. I would write a test function to proof that a points is NOT in a...

How do I create a polygon route on android Google maps?

15 Oct 2016 by BurkusCat

Hi there,I am using the Google Location Services API on Android to periodically save a latitude/longitude they were at. I am trying to create a polygon around these points to create a route of where they have been. I want the route to take into the location accuracy for each of the points, so...

Implementing GIS polygon overlay computation with mapreduce for spatial big data processing

22 Feb 2017 by Nelek

You should use the message board at the bottom of the article. If you write there the authors will receive a notification. If they are still active, then they will probably answer you there.Here... quite difficult.

How to choose a random address from an existing polygon on googlemaps (gmaps.net API)

18 Sep 2017 by Member 13380410

Hello guys, i am sitting on a game which i am programming at the time and i am facing the following problem: The game has a predefined exisiting polygon on a GMaps.net API using GoogleMaps as GMapsProvider. Now i need a random valid address which is existing inside the polygon on the map....

How to choose a random address from an existing polygon on googlemaps (gmaps.net API)

18 Sep 2017 by W∴ Balboos, GHB

Address are arbitrary definitions on the landscape. You can, however pick out an arbitrary locations. Do this by using the rand function to generate GPS coordinates with the following two general possibilities. 1) Polygon is rectangular aligned, in phase, with the coordinate system: simply...

Hi, I start to learn draw shape with gdiplus, but how do I delete shape from canvas ?

23 May 2019 by Member 14430889

Dear All: i am new, i just start to learn draw shape with vs2012 c++ and Gdiplus about 5 weeks, i create a simple project to test, but when i draw polygon finish, i cannot delete any polygon which i selected from canvas, it not so easy like to delete a rectangle or a ellipse, only delete the...

Point Inside 3D Convex Polygon in C++

2 Mar 2016 by John Jiyang Hou

An algorithm to determine if a point is inside a 3D convex polygon for a given polygon vertices in C++

draw polygon in c++ and show its area in output using polygon area formula.

29 Jun 2015 by OriginalGriff

We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.Try it yourself, you may find it...

Can we calculate coordinates/points using center point and drivetime using Google API to create a polygon?

16 Jun 2023 by Maisum Abbas

I am trying to create a polygon using Google APIs. Now, I know how to create a Polygon using Google Maps. The issue is with the points. What I have tried: Earlier I was using a third-party service: Smappen to get points for the isochrone...

draw polygon in c++ and show its area in output using polygon area formula.

29 Jun 2015 by Member 11801907

like i want to draw a polygon in c++ using graphics.h . then ask for coordinates and sides. x1, x2 ,y1 ,y2. then draw the polygon and show its area and perimeter as output. using their mathamatical formulas. I have done this. #include #include #include ...

how do I calculate polygons area and perimeter in this program?

30 Jun 2015 by Member 11801907

#include #include #include #include void show_screen( ); void Polygon(const int,const int []); void Line(const int,const int,const int,const int); int main( ) { int driver=VGA; int mode=VGAHI; ...