Lesson 9: Upload and download

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Have you chosen a nice star that you want to upload ? Great ! Here we will teach you how to do it.

Step 1:

The object which is drawn by your program must be able to be called by a single procedure. If you doubt, just choose the procedure main.

Step 2:

Now press the upload - button. You have certainly already seen it in the bottom of the window.

Step 3:

Now a window pops up, where you can enter a name for your procedure. And since you won't want to keep any errors in your program, we will test it again before uploading. You may have to enter some variables that allow your program to run. If your procedure runs without any variables just disable the checkbox next to the variable field. If you want to use variables in the test please enable the checkbox and enter the variables in the corresponding field. Here an example on how to fill in the variable field:
If your star is of arbitrary size and color, thus uses the variables size and color, you will have to enter this:

size=200,color=red

Step 4:

Now enter your name in the field author, so everybody can read who has created this masterpiece. You should also enter a little description in the field description, in order to allow everybody else to understand what the program is for.

Step 5:

If you press on check now, your computer will check the program for syntax errors (e.g. if you have forgotten an end) and logic errors (e.g. if you try to divide by zero). If everything is ok, this button gets gray and you may press on upload. If not, LOGO will tell you precisely what is wrong.

Step 6:

Now press the upload button and LOGO will remember this procedure. This may need a little moment if your network is slow, but LOGO will tell you when he's finished.