Import 3D points into 3D calculator using spreadsheet view?

Steve Garrison shared this question 7 months ago
Answered

Hello, I am new to Geogebra, and fumbling my way through it to try to learn how to do what I need it to do. I generate a text file of 3D points in another program that I want to bring into 3D Calculator to do geometric constructions and angle measurements. I managed to get my points copied into the spreadsheet view, but from there I was only able to move my points into Geogebra Classic. Can I move these points into 3D Calculator instead? If not, then how can I turn on/off the XY plane visibility and point labels? Thanks for any help.

Comments (10)

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In the 3D app there's no spreadsheet, so you'll have to work with GG Classic when importing data.

In the upperright angle of the 3D app, there's an icon for the Settings og the 3D View, to hide/show the xOy planes and/or axes, as you can in the Style Bar of GG Classic too.

chris

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Thanks, Chris. Now how do I adjust the line thickness and point size? I found it once for one object at a time, but forgot how I got there. Can the size be adjusted for all items at once?

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In Classic6: first make sure that objects are sorted by category. If so there's a header above each category with the name. Click (normal leftclick) on this header to select all objects of this sort, Open the Style Bar of the Graphics and select Settings (the wheel icon). Now you can change the settings of all the objects of the category at once.

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Okay, I figured out how to change line width and point size. Thanks again.

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Perhaps a stupid Q, but is there a way to use the data in 3D after using the Classic UI to import it?

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Yes. Highlight the data, right click / create / list of points.

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Skip this one, it's no longer relevant.

Thanks, finally getting around to pursuing this. OK, I created a simple "times table" as my single-valued function of two variables, selected the cells, used the create a "list of points" command under the "list menu button, but nothing happens. I looked at the Help for the List of Points command and it says: "Select a set of spreadsheet cells where the selected cells form pairs (emphasis added) across rows or columns." As points in 3D require (ordered) triples, this suggests to me that this function is not, in fact, capable of converting 3D data into 3D points. Or am I missing something? Thanks!

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OK, I figured out that one's points need to be, layout-wise, in a "list" (it would be nice if they could be in a "table," with the column and row headings specifying the values of the independent variables, but I recognize that most real 3D data doesn't "come" that way, so "oh wohl").

I created my list of triples, but they don't appear to have been automatically plotted, in either 3D or 2D view: how do I get GeoGebra to plot them? Also: please remind me--how do I index a list, i.e., reference a particular element by its location, and does list indexing support slicing?

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My page must've timed out or something b/c when I reloaded it plotted them fine.

Next step: importing 3D data. I tried following the instructions given in Spreadsheet View, but they don't work: right (Ctrl on Mac) clicking in an empty cell brings up nothing. Searching, I see that this has been reported as something that has gone "missing" in the change from 5 to 6. Sure enough, I downloaded 5 and was able to import 3D data as advertised; after copying the data into a 6 Spreadsheet and making a list out of all of it, it all plotted great! Please get the data import functionality added to 6, pretty, pretty please! Thanks!

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