# Marker not displaying on map using unfolding library
**URL:** https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240
**Category:** Libraries
**Created:** [December 8, 2019, 4:58am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240 "2019-12-08T04:58:57Z")
**Posts on this page:** 14
**Page:** 1
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 8, 2019, 4:58am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/1 "2019-12-08T04:58:57Z")
code:-
```auto
import de.fhpotsdam.unfolding. ;
import de.fhpotsdam.unfolding.geo. ;
import de.fhpotsdam.unfolding.utils.*;
import de.fhpotsdam.unfolding.providers.Microsoft;
import de.fhpotsdam.unfolding.marker.*;
UnfoldingMap map;
void setup() {
size(800, 600);
map = new UnfoldingMap(this,new Microsoft.AerialProvider());
MapUtils.createDefaultEventDispatcher(this);
}
void draw() {
map.draw();
Location berlinLocation = new Location(52.5, 13.4);
SimplePointMarker berlinMarker = new SimplePointMarker(berlinLocation);
map.addMarkers(berlinMarker);
}
```
output on terminal:-
Unfolding Map v0.9.6
No OpenGL renderer. Using Java2DMapDisplay.
output:-
---
### Author:  [@Lexyth](https://discourse.processing.org/u/Lexyth)
#### Post date: [December 8, 2019, 5:19am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/2 "2019-12-08T05:19:59Z")
Try printing out berlinMarker.getScreenPosition(map) to check wether the marker is within the screen dimensions.
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 8, 2019, 7:46am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/3 "2019-12-08T07:46:43Z")
still nothing been displayed on the map
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 8, 2019, 7:51am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/4 "2019-12-08T07:51:10Z")
and the position showing is [429.0, 168.0, 0.0]
---
### Author:  [@Lexyth](https://discourse.processing.org/u/Lexyth)
#### Post date: [December 8, 2019, 4:09pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/5 "2019-12-08T16:09:52Z")
Hmm… as far as i know, that Code shouldn‘t have any problems… except for the missing \* in the first 2 imports, and the second import being _like this_
Maybe @tnagel knows more 😅
---
### Author:  [@tnagel](https://discourse.processing.org/u/tnagel)
#### Post date: [December 8, 2019, 5:03pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/6 "2019-12-08T17:03:16Z")
This is a known bug (see [https://github.com/tillnagel/unfolding/issues/118](https://github.com/tillnagel/unfolding/issues/118)). Please use
`size(800, 600, P2D);`
as work-around.
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 8, 2019, 6:36pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/7 "2019-12-08T18:36:28Z")
Error while using P2D in size()
Error:-
Java.lang.runtimeException: Java.lang.NoSuchFieldError: quality
Code in the image
---
### Author:  [@unique\_username](https://discourse.processing.org/u/unique_username)
#### Post date: [December 8, 2019, 6:49pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/8 "2019-12-08T18:49:44Z")
I suggest using the original code but putting
map.draw();
after
map.addMarkers(berlinMarker);
,so the code would look like this;
```auto
import de.fhpotsdam.unfolding. ;
import de.fhpotsdam.unfolding.geo. ;
import de.fhpotsdam.unfolding.utils.*;
import de.fhpotsdam.unfolding.providers.Microsoft;
import de.fhpotsdam.unfolding.marker.*;
UnfoldingMap map;
void setup() {
size(800, 600);
map = new UnfoldingMap(this,new Microsoft.AerialProvider());
MapUtils.createDefaultEventDispatcher(this);
}
void draw() {
Location berlinLocation = new Location(52.5, 13.4);
SimplePointMarker berlinMarker = new SimplePointMarker(berlinLocation);
map.addMarkers(berlinMarker);
map.draw();
}
```
not sure if this would work or not, just thinking that you should add the marker to the map data before displaying it.
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 8, 2019, 7:08pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/9 "2019-12-08T19:08:51Z")
No, it did not make any difference
---
### Author:  [@Lexyth](https://discourse.processing.org/u/Lexyth)
#### Post date: [December 8, 2019, 9:09pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/10 "2019-12-08T21:09:18Z")
That‘s probably not gonna help, but please add the marker in setup. You‘re currently adding a marker each frame… that might cause some problems.
---
### Author:  [@Lexyth](https://discourse.processing.org/u/Lexyth)
#### Post date: [December 8, 2019, 9:11pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/11 "2019-12-08T21:11:37Z")
Are you sure you didn‘t mean P3D? I‘ve seen another post where it was fixed with P3D, though i‘m not sure if it was the same problem.
---
### Author:  [@tnagel](https://discourse.processing.org/u/tnagel)
#### Post date: [December 8, 2019, 9:54pm UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/12 "2019-12-08T21:54:39Z")
Please use the newest Unfolding beta at [http://services.informatik.hs-mannheim.de/~nagel/GDV/Unfolding\_for\_processing\_0.9.92.zip](http://services.informatik.hs-mannheim.de/~nagel/GDV/Unfolding_for_processing_0.9.92.zip)
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 9, 2019, 6:05am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/13 "2019-12-09T06:05:57Z")
Thanks guys…it worked finally with P3D for me
---
### Author:  [@iamgsshetty](https://discourse.processing.org/u/iamgsshetty)
#### Post date: [December 9, 2019, 6:45am UTC](https://discourse.processing.org/t/marker-not-displaying-on-map-using-unfolding-library/16240/14 "2019-12-09T06:45:45Z")
does removeMarker and clearMarker does not exist because its showing error while I am using it. Although this command exists I unfoldingmap api page under manage marker