**** projected profile doesn't match the original one **** please help

[s.sajjad.jafari]

Hi Dear helper,

In my project i have 3 profiles. i drew a profile view for each of them and a profile view in which i projected 2 of my profiles in a single profile view.( purple profile = source profile __ red profile = destination )

21.jpg

22.jpg

but the projected profile doesn't match the origin. The highest point in projected profile is 744.29 but in original view it is about 745.83.

another conflict is the stations range. in projected profile the last station is 0+516.23 but in original view is 572.90.

Totally i want to know how a projection is being done? i'll be so appreciated if you give me a detail about the process of projecting profiles.

Is it being projected perpendicularly?

[wfberry]

The first confusing part is that you have alignments going Right to Left and Profile going Left to Right.

OK, that can be overcome, but why do it that way?

From what I see all is good with the way Civil 3D operates.

Using your Sample Lines as a guide, the other profiles are brought in perpendicular to the current profile.

(So just visualize bringing the profiles along the sample lines and you can see why the high point of that one profile actually is not in that  CENTER profile.)

Bill

[Joe-Bouza]

interesting. The superimposed profile is calculated perpendicular to the destination alignment. If you examine the destination profile view properties you will see that the super imposed profile for top road end at 0+571.06 elevation 744.337.

Now draw a line by station offset center road 0+571.06 to the top road intersects at 0+567.11: list the profile elevation = 744.337 : conclusion is they match

Bill: I spell checked

[s.sajjad.jafari]

Thank you for considering my problem sir but there is a conflict in superimposing i suppose.

As you can see in following pictures i have a superimposed DOWN ROAD PROFILE (purple profile) to CENTER PROFILE (red profile) . As the first look the elevation of projected profile and it's original one doesn't match. ( original down road profile max height = 745.83 and the superimposed max height is = 744.29 )1.jpg

besides if you consider the projected stations ( if they are projected perpendicularly to the center profile)  i should have at least a projected profile up to the station 0+570 according to the red arrows in the picture. ( but now i have my projected profile only up to the station 0+516.23 and I've missed the rest). 3.jpg

2.jpg

[s.sajjad.jafari]

Thank you for considering my problem sir but you are talking about the top road profile. most of my problem is about the down road profile.

As you can see in following pictures i have a superimposed DOWN ROAD PROFILE (purple profile) to CENTER PROFILE (red profile) . As the first look the elevation of projected profile and it's original one doesn't match. ( original down road profile max height = 745.83 and the superimposed max height is = 744.29 )

1.jpg

besides if you consider the projected stations ( if they are projected perpendicularly to the center profile)  i should have at least a projected profile up to the station 0+570 according to the red arrows in the picture. ( but now i have my projected profile only up to the station 0+516.23 and I've missed the rest). 

2.jpg

3.jpg

[Joe-Bouza]

I dont know? 

whats the significance? what are you trying to do? I see it is the same site as the earth works. 

what is your ultimate goal?

[s.sajjad.jafari]

The problem is that the civil 3D hasn't projected the whole down road profile correctly. The last station it has projected from the original down road profile is 0+502.28 . how about the rest stations of the profile? I need the whole profile to be projected to adjust the height of a project according to that.

[s.sajjad.jafari · Accepted solution]

I found the problem . we should go to the projected profile SUPERIMPOSE OPTIONS the go to the LIMITS tab and change the end station range. it does project up to station 0+560 and not the whole but that much for me is Ok. 

thank you so much sir for helping and considering.