Graph Forums — Can the tool import multiple point-series curves?

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Wed, 24 Nov 2010 15:58:30 +0000

I just checked:
http://www.alibre.com/products/hobby/
and it looks like it's $99 to buy it.

Re: Can the tool import multiple point-series curves?

null@example.com (terrence300) — Wed, 24 Nov 2010 05:20:00 +0000

Using Point Import Wizard for Alibre Design, you can easily import large sets of points as points, connected lines, or as a b-spline of configurable polynomial order on to either an existing sketch or a new sketch based on a design plane.

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sun, 19 Sep 2010 21:31:06 +0000

Just tried it - looks like you successfully inoculated it against spaces. :-)

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Sun, 19 Sep 2010 19:46:17 +0000

Yes, it looks like Graph had an allergy for spaces. I have fixed it now in the beta version.

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sat, 18 Sep 2010 00:04:47 +0000

OK, I reproduced the crash on the import of the multiple curves, probably the one I saw before but couldn't reproduce. It turns out if I have a line composed *only* of spaces, I get an exception at EEFFACE

Note that line 3 has a couple of spaces and nothing else.
A blank line doesn't crash.

It must be allergic to spaces. :-)

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Sun, 12 Sep 2010 23:10:07 +0000

The reason is that Graph tries to guess what the separator is. When it finds a space in the first line it will use space as the separator and look for a space in every line. When there is no space, it will instead use comma as separator. I will change it so it ignores spaces in front and end of the line.

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sun, 12 Sep 2010 22:42:24 +0000

Interesting - I got it to work by putting a space after each comma even with the extra space at the end of the first line. And it's strange that a space after the first line messes up the interpretation of the subsequent lines as well. I had to put a space after all the commas.

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Sun, 12 Sep 2010 22:30:19 +0000

The reason is that there is a space at the end of the first line. This seems to confuse Graph. I will look into that. But it seems to work if you remove the space.

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sat, 11 Sep 2010 22:44:48 +0000

Oh, yes, looks like New will do what I want (create a new system), thanks!

I'm using V4.4 Beta, build 483.

OK, here's the file. When I import, then edit the curve, I see:
X | Y
0,1540 |
10800,123 |
15000,150 |

and nothing plots.

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Sat, 11 Sep 2010 22:33:03 +0000

I am still not able to reproduce the problem. It seems to work fine no matter what I try. Could you please attach a file that fails to import. There must be something else to it.

I am not sure what you mean with 'clean' or 'close' command. You can use File|New to create a new coordinate system.

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sat, 11 Sep 2010 20:23:18 +0000

I'm unable to reproduce the crash now (I tried a bunch of stuff on what was pretty close to the file as it was when the import crashed I think. Oh well...)

But if you import the following file:
0,1540
10800,123
15000,150

It thinks both numbers on each line are X, and there's nothing for Y.
But it works if you insert a space after each comma like:
0, 1540
10800, 123
15000, 150

BTW, it'd be neat if you had a 'clear' or 'close' command so I wouldn't have to exit and start the program again for each attempt to reproduce the crash.

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Sat, 11 Sep 2010 19:55:52 +0000

Unfortunately I am not able to reproduce the two problems you describe. Can you maybe attach a file that demonstrates the problems?

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Sat, 11 Sep 2010 17:47:54 +0000

It looks like when an import has a blank line (perhaps in conjunction with the new "#" command you put in), the program crashes.

Also, if my first value is "0,1540" nothing displays and it got imported as X=0,1540 and Y is blank.
I had to put a space in: "0, 1540"

Re: Can the tool import multiple point-series curves?

null@example.com (paulkinzelman) — Fri, 10 Sep 2010 21:08:25 +0000

Re: ignore characters

I see now the problem with my suggestion. It's wonderful how easy things are when suggestions are made from a place of ignorance! :-)

Re: scripting language

I don't understand yet how Python connects to Graph and I don't see it in any of the menu items. How about a short example to do something trivial?

Re: size

I see now how to get rid of the markers, that'll do what I want, but I have to do it for each trace one by one. It'd be neat if I could do multiple or all the traces at one time. Or is that what Python scripting is for? Maybe you could just make an example of how to do that.

Re: Can the tool import multiple point-series curves?

null@example.com (Ivan Johansen) — Fri, 10 Sep 2010 08:40:47 +0000

paulkinzelman wrote:

Suppose you were to ignore any characters that you didn't understand in an import file and look only for numbers - specifically pairs of numbers on a line, and the # symbol. Then I could feed my .H file in directly if I were careful about my comments. The file looks like this:

It is actually not as easy as it might sound. Graph handles expressions and not only numbers, so you can actually have a coordinate like (pi+2,e^-1)

paulkinzelman wrote:

So if you take the browser philosophy of being as error tolerant as possible, I could import this file directly into Graph and it'd just ignore the lines it can't understand, and plot only the point lines with two numbers. Or even better, it'd be neat if I could embed commands in the C-comments for Graph like:
//Color: Blue
//Line: Interpolation Linear
etc.

Now you are starting to invent a new scripting language, and I already have Python for that.

paulkinzelman wrote:

I just tried your beta and with a small amount of emacs munging, I can get my data into the right format. And in fact, I already found a couple of typos in my data points!

Great!

paulkinzelman wrote:

It'd be nice to be able to turn off the big markers that signify the actual points, as they cover a lot of area. I can select the type, but they're all big. It'd be nice to select either off or very tiny, like 2x the width of the line.

Under the type you can select the size. You can even set it to 0 if you don't want the markers shown.