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#1 Re: Help Me ! » 3 D Geometry, manual drawing » 2010-12-04 14:06:48

bob bundy wrote:

Hi HanaAS

That looks possible, but I want to check some details.

You seem to have three lines, each perpendicular to the other two.  Correct?

Two lines are 600, the third is 550.  But do they cross at their midpoints?  Yes/No

Once I'm clear on that the rest is just trigonometry.  Do you know how to do SINE/COSINE/TANGENT ?

Bob

Hello Bob,

Im wondering if its possible or not to get data f the other 3 edges if so I can keep trying to search if some one could help cause im geting upset , I tried to contact so many ppl in geometry and they cant solve it
Thanks

#2 Re: Help Me ! » How to Draw Perspective in three Dimensions » 2010-11-30 13:58:38

bobbym wrote:

Hi Hana.AS

Is this what you mean?

http://www.suite101.com/content/how-to- … ep-a112965

You might find something of interest in this:

http://members.westnet.com.au/molinasan … k13-3.pdf.

Hello Bobbym,

thank you for the reply, but this way of drawing is simple , i mean how to draw the perspective by geometry and math science.

#3 Help Me ! » How to Draw Perspective in three Dimensions » 2010-11-29 18:37:59

Hana.AS
Replies: 3

Dear forum's members,
Greetings

I would like o know if there any book or website that have quality data on how to do manual drawing for three Dimensions shapes using geometry and math on 3 axes x, y & z as explained in image below:
Coord-system-CA-0-2221.png

Thanks

#4 Re: Help Me ! » 3 D Geometry, manual drawing » 2010-11-27 14:50:48

MathsIsFun wrote:

Hana: I think Bob was asking you some questions

Hello MIF

I did answer his questions in the quote after the question mark, i think he didnt come online today

thank you smile

#5 Re: Help Me ! » 3 D Geometry, manual drawing » 2010-11-27 09:38:10

bob bundy wrote:

Hi HanaAS

That looks possible, but I want to check some details.
...

Bob

Hello Bob,

any news about the model smile

Thanks

#6 Re: Help Me ! » 3 D Geometry, manual drawing » 2010-11-26 11:05:29

bob bundy wrote:

Hi HanaAS

That looks possible, but I want to check some details.

You seem to have three lines, each perpendicular to the other two.  Correct? yep 3 lines

Two lines are 600, the third is 550.  But do they cross at their midpoints?  Yes Exact midpoint

Once I'm clear on that the rest is just trigonometry.  Do you know how to do SINE/COSINE/TANGENT ? yep that is easy Bob smile
Bob

you gave me hope and im so glad smile

Kind regards,
kiss Hana

#7 Help Me ! » 3 D Geometry, manual drawing » 2010-11-26 05:02:03

Hana.AS
Replies: 7

greetings

I hope someone can help me to solve the case explained below:

I'm stuck in this shape for more than two months to solve it out with geometry rules and math formulas but I cant solve it, the question is if I have details of any three points of the attached model the other three points will be fixed in there places so how I can get out of three points locations that I know the other 3 points locations?


if I have C-B, C-T & B-T how can I get location of C-A, C-D & C-S using geometry or math formulas.
please help me or advice me how to solve it out

I attached excel file contain 4 examples, if you need more details about point B, C & T let me know please

http://htam.info/plus-details.html

regards,
Hana Albasha
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