# Zoom in a specific letter
**URL:** https://discourse.processing.org/t/zoom-in-a-specific-letter/9835
**Category:** Coding Questions
**Created:** [April 1, 2019, 1:12pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835 "2019-04-01T13:12:55Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@fwtini](https://discourse.processing.org/u/fwtini)
#### Post date: [April 1, 2019, 1:12pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/1 "2019-04-01T13:12:55Z")
Hi Guys I want in the following code to zoom in a specific letter “3” and after to return back. Can I do it?
```auto
int w;
PFont myFont;
float x = 70;
float y = 6;
float theta = 0.0;
float amplitude = 1000.0;
float period =1.0;
float[] yvalues;
float xpos, ypos;
float xspeed= 0.0;
float yspeed = 0.0;
int xdirection = 10;
int ydirection = 10;
int rad =10;
int x1=100;
int dx=1;
void setup() {
size(800,400);
myFont = loadFont("Avenir-Medium-48.vlw");
textFont(myFont);
w = width+15;
// dw = (TWO_PI / period) * xspacing;
yvalues = new float[w/2];
xpos= width/2;
ypos = height/2;
x1=x1+dx;
if(x>width){
dx = -1;
}
if(x<0){
dx = 1;
}
}
void draw() {
background(0);
xpos = xpos + (xspeed * xdirection);
ypos = ypos + (yspeed * ydirection);
calcWave();
renderWave();
}
void calcWave() {
theta += 1.0;
float x = theta;
for (int i = 0; i < yvalues.length; i++) {
yvalues[i] = sin(x)*amplitude;
x+=dx;
}
}
void renderWave() {
fill(255);
// A simple way to draw the wave with an ellipse at each location
for (int x = 0; x < yvalues.length; x++) {
text("3",x*x+50, 100+yvalues[x], 800,400);
if (xpos > width-rad || xpos < rad) {
xdirection *= -1;
}
if (ypos > height-rad || ypos < rad) {
ydirection *= -1;
text("3",x*x, 400+yvalues[x], 300,300);
}
}
}
```
---
### Author:  [@kll](https://discourse.processing.org/u/kll)
#### Post date: [April 1, 2019, 1:31pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/2 "2019-04-01T13:31:43Z")
? zoom = show bigger ? on what ?
```auto
float tsize = 10;
// ...
textSize(tsize);
// ..
void keyPressed() {
if ( key == '+' ) tsize++;
if ( key == '-' ) tsize--;
}
```
---
### Author:  [@fwtini](https://discourse.processing.org/u/fwtini)
#### Post date: [April 1, 2019, 3:21pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/3 "2019-04-01T15:21:53Z")
With no mousepressed. =/ Can I do it?
---
### Author:  [@humayung](https://discourse.processing.org/u/humayung)
#### Post date: [April 3, 2019, 5:04pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/4 "2019-04-03T17:04:40Z")
zooming?
maybe you can use translate() pushMatrix() popMatrix() and scale()
Good Luck!
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [April 3, 2019, 6:17pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/5 "2019-04-03T18:17:58Z")
the 3 are moving fast.
How do you want to zoom? Stop the animation and then zoom in ?
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [April 3, 2019, 6:42pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/6 "2019-04-03T18:42:14Z")
Example
```auto
// vars
PFont myFont;
float s=1;
float x1, y1;
int phase=0;
int xStart, xStart2;
void setup() {
size(1500, 500, P2D);
background(0);
x1=width/2;
y1=height/2;
xStart=width+8;
xStart2=width+18;
myFont = createFont("ARIAL", 34);
textFont(myFont);
textAlign(CENTER, CENTER);
textMode(SHAPE);
}
void draw() {
background(0);
animateThree();
text("3",
xStart2, y1-33);
xStart2-=3;
}//draw
// ------------------------------------------------------------------------------
void animateThree() {
pushMatrix();
if (phase==0) {
if (xStart>width/2) {
text("3",
xStart, y1);
xStart-=3;
} else
{
phase=1;
}
}
// ---
else if (phase==1) {
translate(x1, y1);
scale (s);
text("3",
0, 0);
s+=.1;
if (s>11)
{
phase = 2;
}
}//if
// ---
else if (phase==2) {
translate(x1, y1);
scale (s);
text("3",
0, 0);
s-=.1;
if (s<=1)
{
phase = 3;
}
}//if
// ---
else if (phase==3) {
if (xStart>-12) {
text("3",
xStart, y1);
xStart-=3;
} else phase=4;
}//if
// ---
else if (phase==4) {
// end
}
popMatrix();
}
void mousePressed() {
//
}
//
```
---
### Author:  [@fwtini](https://discourse.processing.org/u/fwtini)
#### Post date: [April 4, 2019, 12:25pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/7 "2019-04-04T12:25:06Z")
thaaank you!!!
😀
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [April 6, 2019, 4:09pm UTC](https://discourse.processing.org/t/zoom-in-a-specific-letter/9835/8 "2019-04-06T16:09:48Z")
Good example with scale. There are several different approaches to “zoom” onto text:
1. change textSize – text is bigger, so appears closer – [https://processing.org/reference/textSize\_.html](https://processing.org/reference/textSize_.html)
2. change the rendering scale – everything (including text) gets bigger while scaled – [https://processing.org/reference/scale\_.html](https://processing.org/reference/scale_.html)
3. in 3D, move the camera closer to the text plane – [https://processing.org/reference/camera\_.html](https://processing.org/reference/camera_.html)
4. in 3D, use translate to move the text drawing plane closer to the camera – [https://processing.org/reference/translate\_.html](https://processing.org/reference/translate_.html)
Which approach works best depends on what your other goals for the sketch are – are there other objects, are there other camera motions, is it 3D et cetera.