Geomerative questions

Processing Libraries
1

Hello everyone !

Nowadays I’m trying to learn geomerative library and i have questions.

1st question: “How to load fonts ?”. I can load only FreeSans.ttf. If I put another font it says “Null Pointer Exception”. I loaded my font to data folder.

2nd question: “I get points of font and learned the points’ position. But i couldnt know 2 points position”. Look screenshot below :point_down:

Screenshot (158)|400x

Thanks

2

Hello,

It helps if you provide example code (simplify it) and a reference.

If you are going to post code be sure to format it properly:
https://discourse.processing.org/faq#format-your-code

I am referencing this example from Geomerative library:
Tutorial_07_HelloWorld_getPoint.pde

This will print your first point:

  points = grp.getPoints();
  println(points.length);
  println(points[0].x , points[0].y );

You will have to loop through the others from 0 to points.length-1

:)

1 Like
3

Thanks for your reply.

import geomerative.*;

RFont f;
RShape grp;
RPoint[] points;

void setup() {
  size(1200, 800);
  frameRate(1);

  RG.init(this);
  
  grp = RG.getText("A", "FreeSans.ttf", 300, CENTER);

  smooth();
}

void draw() {
  background(255);

  push();
  translate(width/2, height/3*2);

  RG.setPolygonizer(RG.ADAPTATIVE);
  stroke(255, 0, 0);
  strokeWeight(1);
  grp.draw();

  points = grp.getPoints();

  if (points != null)
  {
    noFill();
    strokeWeight(5);
    stroke(0, 0, 0);

    beginShape(POINTS);
    for (int i=0; i<points.length; i++)
    {
      float x1, y1; 
      if(i != frameCount)
        x1 = points[i].x;
      else
        x1 = 10000;
      
      y1 = points[i].y;
      vertex(x1, y1);
      //println("x -->", points[i].x);
      //println("y -->", points[i].y);
    }
    endShape(CLOSE);
    pop();
  }
}

@glv Here is my code. Every frame one point disappears which is equal to points[i].x. But when i equals to 8 or 12, there no point disappears.

And I couldn’t load my font to the sketch.

Screenshot (160)
Screenshot (160)1919×994 65 KB

Even my font was in data folder.

1 Like
4

@yhlaskerimov safest thing to access fonts is to use absolute data path to file eg on linux:-

"/home/tux/sketchbook/sketch_folder/data/aktif.otf"

I know processing supports the otf extension, I’m not sure for geomerative.

5

@monkstone thanks for your reply !

I have tried but this didn’t help too. Look.

Screenshot (164)
Screenshot (164)1919×1025 67.7 KB

6

Now this is weird and counter-intuitive but place font in the sketch-folder (ie not sketch-folder/data) and it gets found…, works for me

1 Like
7

Sorry, but it didn’t help too.

8

@glv Can you help me with this questions ?

9

Hello,

The answer is on the Geomerative page:
http://www.ricardmarxer.com/geomerative/

Includes a TrueType font and an SVG interpreters.

Use a TrueType font.

image
image602×627 15.7 KB

:)

1 Like
10

How did u do it ? What is wrong in my code ??

11

You tried to use an otf font

Ending/ extension otf

Use ttf instead

Copy font into the folder of your Sketch

1 Like
12

I renamed my .otf font to .ttf that didn’t help…
I have to use only one font called aktif. I can’t find .ttf version of my font.

13

Just tried on my computer using a random internet font and can confirm this works using monkstones code

image

I simply placed the downloaded font into the sketch folder. I have also tried it with the font in the data folder and that works too.

1 Like
14

This code works with FreeSans.ttf on my computer too. And i need to use my own font called aktif.

And i can’t get access to all of that points on the letter ! That is my problem that is have to solve

15

is this a font that you’ve made yourself or something you’ve downloaded, I cant seem to find any font called aktif online for free.

16

@glv, @paulgoux, @monkstone I found aktif.ttf and it worked. Thank u all !

Just one problem, I can’t have an access to all of points on the Letter. What can i do ?

17

I can see all the points; you have to write code to visualize things to assist you.

Code 
import geomerative.*;

RFont f;
RShape grp;
RPoint[] points;
int i;

void setup() 
  {
  size(500, 500);
  frameRate(2);

  RG.init(this);
  grp = RG.getText("A", "FreeSans.ttf", 300, CENTER);
  
  textSize(18);
  }

void draw() 
  {
  background(255);

  push();
  translate(width/2, height/3*2);

  RG.setPolygonizer(RG.ADAPTATIVE);

  stroke(255, 0, 0);
  strokeWeight(1);
  grp.draw();

  points = grp.getPoints();

  if (points != null)
  {
    noFill();
    strokeWeight(5);
    stroke(0, 0, 0);

    beginShape(POINTS);
    //for (int i=0; i<points.length; i++)
    i = frameCount%points.length;
      {
      float x1, y1; 

      x1 = points[i].x;
      y1 = points[i].y;
      vertex(x1, y1);
      fill(0, 0, 255);
      textAlign(CENTER);
      textSize(18);
      text(i , x1, y1);
      }
    endShape(CLOSE);
    pop();
    }
  }

Look for a pattern and then write code to work with that.
This may be documented somewhere; that is an exploration for you.

:)

Additional note to solution:

1 Like
18

@glv @paulgoux @Chrisir, just an observation, geomerative methods RG.getText(...) uses PApplet instance method loadBytes internally.

1 Like