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Topic ClosedAutocad 3D arc
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Topic: Autocad 3D arc
    Posted: 20.May.2011 at 12:41
Well it seems we both learned something.  I'd call that a win-win.  You're welcomed Kajito.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kajito View Drop Down
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Points: 130 		Direct Link To This Post Posted: 20.May.2011 at 10:56

John,

yeah the spline actually works fine, dont know why I thought spline cannot have a infinite curvature ... my brain doesnt seem to work these days ;))

thanks for help 

c u at next topic ;)

< style="height: 80px; width: 444px; border-top-color: rgba(7, 0, 0, 0); border-left-color: rgba(7, 0, 0, 0); border-right-color: rgba(7, 0, 0, 0); border-bottom-color: rgba(7, 0, 0, 0); border-top-width: 1px; border-left-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-top-style: solid; border-left-style: solid; border-right-style: solid; border-bottom-style: solid; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px">< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="auto" ed="ed">Detect language< value="nl">Dutch< value="en">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish⇄< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="nl">Dutch< value="en" ed="ed">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 18.May.2011 at 23:36
You must be using a different "spline" than I am because as you see from my last image I have a straight section followed by a curve followed by another straight section.

I think if you use a helix you would have a lot of slicing to do.  I threw that out there before I had a chance to test the spline option.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kajito View Drop Down
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Points: 130 		Direct Link To This Post Posted: 18.May.2011 at 23:17

thanks for suggestion John. my issues is not with the loft or anything such as, but with the guides/paths. Spline works fine but it is not the exact geometry (althought it is only for presentation I'd like to know how to make it right). it will not create straight line, arc as tangent and straight line again. (or am I missing smth).

I tired the helix but i honestly cannot get my head around, it is the first time I used it to be honest. 
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 18.May.2011 at 20:01
Curved 3D ramp.




Edited by John Connor - 18.May.2011 at 20:03
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 18.May.2011 at 19:53
It can be done using the LOFT command but first you'll have to create your "Guides" with a Spline.  I tested it and it does work.  Some attention to detail is required when placing the pick points for your splines (you'll need two, one for each side of the ramp).  
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 18.May.2011 at 19:06
Maybe you can use a helix and slice off what you don't need.  Or maybe use a spline?
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kajito View Drop Down
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Points: 130 		Direct Link To This Post Posted: 18.May.2011 at 17:33

John,

I have it all: 3.5m difference between floors (sfl), ramp profile (rectangular slab with kerbs), both plans. It is just a classic ramp within a building for an underground car park. (The building itself is finished but I'm doing some 3D models for presentation purposes). It should be easy, but somehow it is not. I can do it without issus in one plane or on straight line, but when it comes to the curved 3D Part it doesn't work. I have a feeling I'm doing some basic stupid mistake.

< style="height: 80px; width: 444px; border-top-color: rgba(7, 0, 0, 0); border-left-color: rgba(7, 0, 0, 0); border-right-color: rgba(7, 0, 0, 0); border-bottom-color: rgba(7, 0, 0, 0); border-top-width: 1px; border-left-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-top-style: solid; border-left-style: solid; border-right-style: solid; border-bottom-style: solid; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px">< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="auto" ed="ed">Detect language< value="nl">Dutch< value="en">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish⇄< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="nl">Dutch< value="en" ed="ed">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 18.May.2011 at 17:04
What information do you actually have?  Do you have...

1. The height difference between the basement and ground floor?
2. A layout for both floors for siting purposes?
3. A predetermined width for the ramp?
4. A site plan?

This is an exterior ramp?  Yes/No?
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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Kajito View Drop Down
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Points: 130 		Direct Link To This Post Posted: 18.May.2011 at 16:31

'm sorry guys, I forgot to mention that the ramp is an access ramp between basement and ground floor. That's why the loft command is not really working because I dont have the path. One interesting thing is that when I draw an arc and then rotate it in 3D, I cannot trace a 3D polyline on the arc. I'm really confused about this one.  

How do you actually draw  3D curve?

< style="height: 80px; width: 444px; border-top-color: rgba(7, 0, 0, 0); border-left-color: rgba(7, 0, 0, 0); border-right-color: rgba(7, 0, 0, 0); border-bottom-color: rgba(7, 0, 0, 0); border-top-width: 1px; border-left-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-top-style: solid; border-left-style: solid; border-right-style: solid; border-bottom-style: solid; padding-top: 2px; padding-right: 2px; padding-bottom: 2px; padding-left: 2px">< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="auto" ed="ed">Detect language< value="nl">Dutch< value="en">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish⇄< value="af">Afrikaans< value="sq">Albanian< value="ar">Arabic< value="hy">Armenian< value="az">Azerbaijani< value="eu">Basque< value="be">Belarusian< value="bg">Bulgarian< value="ca">Catalan< value="zh-CN">Chinese (Simplified)< value="zh-TW">Chinese (Traditional)< value="hr">Croatian< value="cs">Czech< value="da">Danish< value="nl">Dutch< value="en" ed="ed">English< value="et">Estonian< value="tl">Filipino< value="fi">Finnish< value="fr">French< value="gl">Galician< value="ka">Georgian< value="de">German< value="el">Greek< value="ht">Haitian Creole< value="iw">Hebrew< value="hi">Hindi< value="hu">Hungarian< value="is">Icelandic< value="id">Indonesian< value="ga">Irish< value="it">Italian< value="ja">Japanese< value="ko">Korean< value="la">Latin< value="lv">Latvian< value="lt">Lithuanian< value="mk">Macedonian< value="ms">Malay< value="mt">Maltese< value="no">Norwegian< value="fa">Persian< value="pl">Polish< value="pt">Portuguese< value="ro">Romanian< value="ru">Russian< value="sr">Serbian< value="sk">Slovak< value="sl">Slovenian< value="es">Spanish< value="sw">Swahili< value="sv">Swedish< value="th">Thai< value="tr">Turkish< value="uk">Ukrainian< value="ur">Urdu< value="vi">Vietnamese< value="cy">Welsh< value="yi">Yiddish
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