<![CDATA[In 3D free point on xoy]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy
Mon, 21 Nov 2016 07:03:28 +0000Mon, 14 Nov 2016 21:27:00 +0000Zend_Feed<![CDATA[For new points you can click with the point tool on the x-axis or define it with the command Point[xAxis] But if the point is already there then you need to go to the definition in the property view and change the defintion to Point[xAxis]. Or just redefine it.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206820
Tue, 15 Nov 2016 05:31:49 +0000<![CDATA[Thanks, but I know that. I am interested only in xOy plane and NOT on z-axis. Without an duplicate plane of xoy.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206824
Tue, 15 Nov 2016 05:56:52 +0000<![CDATA[I don' t what you want ... pleade explain it more exactly.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206826
Tue, 15 Nov 2016 06:14:14 +0000<![CDATA[hi when you create a plane a as z=0 and the a point A=Point[a], you've got a free point in the xOy-plane which you cannot move vertically.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206828
Tue, 15 Nov 2016 06:41:58 +0000<![CDATA[Point[xAxis] move only on x-azis. Not on xOy plane . I created a plane identical with plane xOy (a) and I positioned to him my point (PointIn [a]). I think there is a command to put point directly on xOy plane ... Please tell me what do you not understand]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206830
Tue, 15 Nov 2016 06:44:51 +0000<![CDATA[hi A=Point[z=0] will do directly without creating a plane first. chris]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206832
Tue, 15 Nov 2016 06:51:37 +0000<![CDATA[Yes this is it. Thank you very much]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206834
Tue, 15 Nov 2016 06:53:24 +0000<![CDATA[Ah ... I did not understand it correctly what you mean.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206856
Tue, 15 Nov 2016 17:27:26 +0000<![CDATA[This point can have positive coordinates ? ex: Point A = [z = 0, x> 0, y> 0]]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206860
Tue, 15 Nov 2016 17:31:55 +0000<![CDATA[this sintax is not possible. you can do an "on update" script similar to this post https://www.geogebra.org/he...]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206868
Tue, 15 Nov 2016 17:48:13 +0000<![CDATA[I understand. Thank you]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206870
Tue, 15 Nov 2016 17:57:59 +0000<![CDATA[hi but you can create something that looks like it. When you create veelhoek1=Polygon[(0,0), (50,0), (50,50),(0,50)] then PointIn[veelhoek1] will have positive x and y and z=0. (If you want to avoid 0, you can use (50,0.1) ore something like that). Sometimes we have to content ourselfs with the result of a trick instead of simple beauty... chris]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-206914
Wed, 16 Nov 2016 06:23:14 +0000<![CDATA[This is the simplest solution. Thank you ccambre and mathmagic for good answers]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207000
Thu, 17 Nov 2016 06:08:02 +0000<![CDATA[z=0 este ecuatia planului [XOY} dumneata vrei sa muti punctul pe verticala ? din ce am vazut eu, in fereastra 3D, punctele se creaza in planul z=0 si dand cllck pe ele, in jurul lui apar sageti de sens pentru miscare in plan, iar daca se mai da click o data apar sageti de sens pe axa Z. :-)]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207400
Sun, 20 Nov 2016 11:11:20 +0000<![CDATA[I found a syntax out of help. I hope it is not a bug. I tried dynamics coords in 3D for B=(x,y,z) 0<x ; 0<y ; 0<z this is the work move B in three directions it is easy another conditions for B]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207406
Sun, 20 Nov 2016 12:16:16 +0000<![CDATA[Am dorit ca punctul sa fie creat direct in planul xOy si sa nu poata fi mutat pe verticala . Adica in primul rand sa fie mutat numai in z=0 si apoi numai pentru valori pozitive pentru x si y. In plus am intrebat daca exista o comanda directa pentru astea si se pare ca nu.]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207492
Sun, 20 Nov 2016 15:26:03 +0000<![CDATA[I used for point B : DynamicCoordinates[A, If[x(A) < 0, 0, x(A)], If[y(A) < 0, 0, y(A)], If[z(A) ≤ 0, 0, 0]] Excelent solution mathmagic :) However, when you click twice can be confusing due to displacement point A to z> 0]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207522
Sun, 20 Nov 2016 15:35:35 +0000<![CDATA[DynamicCoordinates[A, If[x(A) < 0, 0, x(A)], If[y(A) < 0, 0, y(A)], 0] is better the A point must be hidden the 3D dynamic coords are in process]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207606
Sun, 20 Nov 2016 17:39:35 +0000<![CDATA[ce apartine planului [X0Y] se vede si in fereastra 3D. adica desenand in 2D, se vede si in 3D. daca nu doriti variabila pe Z, atunci nu este mai simplu ca sa lucrati in [X0Y] aceasta nu pare a fi intrebare de matematica, este intrebare de utilizare a editorului. am deschis un topic despre ce este GeoGebra si cum poate fi folosit el: Sa utilizam Geogebra ]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207700
Sun, 20 Nov 2016 22:03:04 +0000<![CDATA[You can use A=PointIn[x>=0&&y>=0]]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207726
Mon, 21 Nov 2016 00:24:14 +0000<![CDATA[Yes, that is what I wanted. Maybe it will work for z ( PointIn[(y ≥ 0) ∧ (z ≥ 0)] not wotk )]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207748
Mon, 21 Nov 2016 06:44:37 +0000<![CDATA[Am spus comanda Radu Niculae]]>
https://help.geogebra.org/topic/in-3d-free-point-on-xoy#comment-207754
Mon, 21 Nov 2016 07:03:29 +0000