Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Here's some example code that should do what you want. A few things to note:</p> <p>The <code>draw()</code> function should only be used to actually draw your sketch, other code should be located elsewhere. It is called in a continuous loop to redraw the screen, so any extra code can slow down or even prevent the redrawing, which is undesirable.</p> <p>You were on the right track with the <code>A</code> variable. I've renamed it to <code>squareVisible</code>. It is a boolean variable that indicates whether to draw the square or not. The <code>draw()</code> function checks it's state, and changes the fill to only draw the square if <code>squareVisible</code> is true.</p> <p>The <code>mousePressed()</code> function is called by Processing when you click somewhere in the sketch. It is toggling the squareVisible variable.</p> <p>The <code>mouseMoved()</code> function is called by Processing when you move the mouse without clicking, it is a better place to send serial output than the draw() function.</p> <pre><code>boolean squareVisible = true; int x = 50; int y = 50; int w = 100; int h = 100; import processing.serial.*; Serial port; int val; void setup() { size(200, 200); noStroke(); fill(255, 0, 0); rect(x, y, w, h); port = new Serial(this, 9600); } void draw() { background(255); if (squareVisible) { fill(40, 80, 90); } else { fill(255, 0, 0); } rect(x, y, w, h); // Draw a square } void mousePressed() { if (((mouseX &gt; x) &amp;&amp; (mouseX &lt; x + w) &amp;&amp; (mouseY &gt; y) &amp;&amp; (mouseY &lt; y + h))) { // if mouse clicked inside square squareVisible = !squareVisible; // toggle square visibility } } void mouseMoved() { if (((mouseX &gt; x) &amp;&amp; (mouseX &lt; x + w) &amp;&amp; (mouseY &gt; y) &amp;&amp; (mouseY &lt; y + h))) { port.write("H"); // send an H to indicate mouse is over square } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POON/OFF button for Processing
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USDamien Ayers
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POON/OFF button for Processing
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWorked like a charm, thanks for the help!
      singulars
      1. PO
      1. USWilson Alexander Gonzalez
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload