problem precision intersection

[Roberto377]

hi to all I was drawing a prospect of a room through trilaterations, as a method to insert the sides and the diagonals I used of the circles, unfortunately I noticed that the design is not accurate, enlarging it is seen that when I create the line is not taken the intersection of the circles but an intersection close them, and this creates problems with the square of the walls

 

[MassiVonWeizen]

look that it is only question of graphic display.
get up to date and work out.
between two intersecting circles cannot be intersections
then seen how much you enlarged it will be 1 millionth of units

 

[MassiVonWeizen]

command Rich

 

[thelittlesniper]

It often happens, even in other situations (among lines, polylines etc.) but as it says massive it is only a "mistake" of visualization as your design unit is immensely larger than you are zooming. If you don't have any third-party elements nearby or if you don't take the wrong snap, your intersection is mathematically correct.

 

[MassiVonWeizen]

if you have multiple snaps active, as usual, you can obligate the use of one snap by doing shift + right button; in this way you use only one snap without having to go to change the preset ones in normal use

 

[Roberto377]

I am trying all I have turned off all the snaps is active only the intersection , I was creating a rectangular object from 3,50 x 4,00 as diagonals 5,32, unfortunately it is not the last side using the method of the circles me from 3,515

 

[MassiVonWeizen]

never attach files that would otherwise help you become too easy

 

[MassiVonWeizen]

between the other the video is not visible

 

[stefanobruno]

How is co-ordination z?

 

[frasco]

Hello.
maybe there is a few parameters that intervenes on the segmentation of the circles.
I can't believe

 

[Roberto377]

I hope that the video is visible now, the co-ordination z should be appropriate, I have tried to revise the program several times, but using the method of the circles gives me little precise values.

 

[MassiVonWeizen]

you see only a 3.515 long line, all the rest is a mystery.
the diagonal of a rectangle 3.5x4 is 5,315073 and not 3.52

 

[Tristus]

off topic. to record a screen video. is great and free

https://www.dvdvideosoft.com/it/products/dvd/free-screen-video-recorder.htm

 

[Tristan]

Excuse me. @roberto377 But what should you understand from that video?

 

[Roberto377]

you see only a 3.515 long line, all the rest is a mystery.
the diagonal of a rectangle 3.5x4 is 5,315073 and not 3.52

as I wrote before the diagonals are 5,32 ,

 

[MassiVonWeizen]

instead of pointing on a obvious typing error attaches the file and a video done well.
the diagonal is not 5,32, but 5,315073; you cannot round where you are comfortable and then claim missing millisecond deficiencies

 

[MassiVonWeizen]

with a rectangle side 4 and diagonal 5.32 the remaining side is 3.50747
.747 is the middle of .15 which gives you to think that your construction with the diagonal wrong wrong wrong multiplied the difference by the number of times you've made the tracks.

edit:
added image

 

[Roberto377]

instead of pointing on a obvious typing error attaches the file and a video done well.
the diagonal is not 5,32, but 5,315073; you cannot round where you are comfortable and then claim missing millisecond deficiencies

If I am the beauty I thank you for the compliment, told by you that you are looking at the thousandth anniversary, as I was doing an exercise from a text that will have read in many but it is wrong from how you say I will try to arrange myself
thank you again and excuse in case I made you waste time

 

[MassiVonWeizen]

except for the case that mathematics has not become an opinion, if the text of the exercise, which is not known what it is, reports as diagonal 5.32 instead of 5.31507 (attention that is this 7 final that rounds to the upper digit instead of the lower one) means that it has rounded the figure to 2 decimals. As a result the size results from a construction with this measure cannot be detected with 3 decimals because they will never be corrected. Is it clear to you the concept of the thousandths at stake? Have you seen the image that I attached in the previous post or read only what is convenient to you?
we are at the #18 post is you have not attached the file to see the construction and analyze its possible problems, the video does not explain anything about how you built the rectangle and you see only a line and a flicker, you call into question an exercise that many have read without citing it or reporting it... seems to read the arguments of the landplants and similar.

to me it makes sadness to see users who pout and make free vittimism because it has been pointed out that they are wrong, users who have been widely helped, even by the undersigned, and have not complained until you have settled them

 

[Tristus]

I didn't understand the problem. What do you mean by the prospect of a room? Are you building the room plant with autocad based on measurements taken in "campaign"? (type I mix the sides and the diagonals and then carry the relief on autocad? If so, you can't expect the triangulation to close to perfection. in these cases the point placed in the center of space delimited by the intersection of the 3 circles is taken as a good point. Let's talk about mm... we can do it, even because it would still be impossible to close the triangle to perfection.