CS
Colin Smart
Sun, Aug 21, 2016 5:45 PM
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
Which takes an object, rotates around x and y axes and creates the union of all three objects.
I would like to think that there was some way of “storing” the original object and performing a transform on each copy, but things may not work like that.
If there is a way of “storing” and reusing the object, what is it? If there isn’t a way, it would be good to know to stop me wasting time trying to find it.
Thanks,
Colin
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
Which takes an object, rotates around x and y axes and creates the union of all three objects.
I would like to think that there was some way of “storing” the original object and performing a transform on each copy, but things may not work like that.
If there is a way of “storing” and reusing the object, what is it? If there isn’t a way, it would be good to know to stop me wasting time trying to find it.
Thanks,
Colin
MK
Marius Kintel
Sun, Aug 21, 2016 5:54 PM
If the purpose of “storing” and “reusing” the object is to save time and memory generating it, you’re already doing the correct thing:
OpenSCAD will implicitly cache all geometry, so there is no penalty by using it multiple times. The cache is based on a normalized source code representation so any code block with equivalent source code will be reused automatically, even if it spans a whole hierarchy of objects.
-Marius
On Aug 21, 2016, at 13:45, Colin Smart colin@tweedside.co.uk wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
Which takes an object, rotates around x and y axes and creates the union of all three objects.
I would like to think that there was some way of “storing” the original object and performing a transform on each copy, but things may not work like that.
If there is a way of “storing” and reusing the object, what is it? If there isn’t a way, it would be good to know to stop me wasting time trying to find it.
Thanks,
Colin
OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
If the purpose of “storing” and “reusing” the object is to save time and memory generating it, you’re already doing the correct thing:
OpenSCAD will implicitly cache all geometry, so there is no penalty by using it multiple times. The cache is based on a normalized source code representation so any code block with equivalent source code will be reused automatically, even if it spans a whole hierarchy of objects.
-Marius
> On Aug 21, 2016, at 13:45, Colin Smart <colin@tweedside.co.uk> wrote:
>
> I have some code:
>
> dome (100,8);
> rotate ([90,0,0]) dome (100,8);
> rotate ([0,90,0]) dome (100,8);
>
> Which takes an object, rotates around x and y axes and creates the union of all three objects.
>
> I would like to think that there was some way of “storing” the original object and performing a transform on each copy, but things may not work like that.
>
> If there is a way of “storing” and reusing the object, what is it? If there isn’t a way, it would be good to know to stop me wasting time trying to find it.
>
> Thanks,
>
> Colin
> _______________________________________________
> OpenSCAD mailing list
> Discuss@lists.openscad.org
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
RP
Ronaldo Persiano
Sun, Aug 21, 2016 8:23 PM
Kintel,
Even very big/complex objects are cached? Object renderization is also
cached?
Colin,
If you don't want to spend time rebuilding complex unchanged parts, may be
helpful to save them in a stl file and importing it as needed.
2016-08-21 14:54 GMT-03:00 Marius Kintel marius@kintel.net:
If the purpose of “storing” and “reusing” the object is to save time and
memory generating it, you’re already doing the correct thing:
OpenSCAD will implicitly cache all geometry, so there is no penalty by
using it multiple times. The cache is based on a normalized source code
representation so any code block with equivalent source code will be reused
automatically, even if it spans a whole hierarchy of objects.
-Marius
On Aug 21, 2016, at 13:45, Colin Smart colin@tweedside.co.uk wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
Which takes an object, rotates around x and y axes and creates the union
I would like to think that there was some way of “storing” the original
object and performing a transform on each copy, but things may not work
like that.
If there is a way of “storing” and reusing the object, what is it? If
there isn’t a way, it would be good to know to stop me wasting time trying
to find it.
Kintel,
Even very big/complex objects are cached? Object renderization is also
cached?
Colin,
If you don't want to spend time rebuilding complex unchanged parts, may be
helpful to save them in a stl file and importing it as needed.
2016-08-21 14:54 GMT-03:00 Marius Kintel <marius@kintel.net>:
> If the purpose of “storing” and “reusing” the object is to save time and
> memory generating it, you’re already doing the correct thing:
> OpenSCAD will implicitly cache all geometry, so there is no penalty by
> using it multiple times. The cache is based on a normalized source code
> representation so any code block with equivalent source code will be reused
> automatically, even if it spans a whole hierarchy of objects.
>
> -Marius
>
> > On Aug 21, 2016, at 13:45, Colin Smart <colin@tweedside.co.uk> wrote:
> >
> > I have some code:
> >
> > dome (100,8);
> > rotate ([90,0,0]) dome (100,8);
> > rotate ([0,90,0]) dome (100,8);
> >
> > Which takes an object, rotates around x and y axes and creates the union
> of all three objects.
> >
> > I would like to think that there was some way of “storing” the original
> object and performing a transform on each copy, but things may not work
> like that.
> >
> > If there is a way of “storing” and reusing the object, what is it? If
> there isn’t a way, it would be good to know to stop me wasting time trying
> to find it.
> >
> > Thanks,
> >
> > Colin
> > _______________________________________________
> > OpenSCAD mailing list
> > Discuss@lists.openscad.org
> > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>
>
> _______________________________________________
> OpenSCAD mailing list
> Discuss@lists.openscad.org
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>
MK
Marius Kintel
Sun, Aug 21, 2016 8:27 PM
Even very big/complex objects are cached? Object renderization is also cached?
Big objects are cached, as long as there is enough memory.
Geometry evaluation is cached, e.g. results of time-consuming CSG operations.
-Marius
On Aug 21, 2016, at 16:23, Ronaldo Persiano <rcmpersiano@gmail.com> wrote:
>
> Even very big/complex objects are cached? Object renderization is also cached?
>
Big objects are cached, as long as there is enough memory.
Geometry evaluation is cached, e.g. results of time-consuming CSG operations.
-Marius
RK
Roland Koebler
Thu, Aug 25, 2016 5:58 PM
Hi,
On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes longer
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
Hi,
On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
> I have some code:
>
> dome (100,8);
> rotate ([90,0,0]) dome (100,8);
> rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes longer
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
O
OzAtMichael
Fri, Aug 26, 2016 12:15 AM
Testing... sorry to hijack, but testing mailing list/forum, as this thread didn't make it there.
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes longer
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date: 08/25/16
Testing... sorry to hijack, but testing mailing list/forum, as this thread didn't make it there.
> -----Original Message-----
> From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of Roland Koebler
> Sent: Friday, 26 August 2016 3:58 AM
> To: discuss@lists.openscad.org
> Subject: Re: [OpenSCAD] Simple optimisation
>
> Hi,
>
> On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
> > I have some code:
> >
> > dome (100,8);
> > rotate ([90,0,0]) dome (100,8);
> > rotate ([0,90,0]) dome (100,8);
>
> You can try:
>
> module dome2(a,b)
> {
> render()
> dome(a,b);
> }
> dome2(100,8);
> rotate([90,0,0]) dome2(100,8);
> rotate([0,90,0]) dome2(100,8);
>
> Does this help?
>
>
> I often use render() to speed-up viewing complex objects: It takes longer
> to create the 1st preview, but viewing/rotating it is much faster.
>
>
> Best regards,
> Roland
>
>
>
> PS: In fact, I usually use:
>
> render_color_enable = true;
> module render_color(c)
> {
> if(render_color_enable) {
> color(c)
> render()
> children();
> }
> else {
> color(c)
> children();
> }
> }
>
> And add render_color(...) to many of my objects.
>
>
> _______________________________________________
> OpenSCAD mailing list
> Discuss@lists.openscad.org
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date: 08/25/16
RP
Ronaldo Persiano
Fri, Aug 26, 2016 2:15 AM
Michael, it seems the issue is with the archive. I have received messages
from the thread "Living Hinges" but it doesn't appear in the archive.
2016-08-25 21:15 GMT-03:00 OzAtMichael oz.at.michael@gmail.com:
Testing... sorry to hijack, but testing mailing list/forum, as this thread
didn't make it there.
Sent: Friday, 26 August 2016 3:58 AM
To: discuss@lists.openscad.org
Subject: Re: [OpenSCAD] Simple optimisation
Hi,
On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes longer
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date:
Michael, it seems the issue is with the archive. I have received messages
from the thread "Living Hinges" but it doesn't appear in the archive.
2016-08-25 21:15 GMT-03:00 OzAtMichael <oz.at.michael@gmail.com>:
> Testing... sorry to hijack, but testing mailing list/forum, as this thread
> didn't make it there.
>
> > -----Original Message-----
> > From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of
> Roland Koebler
> > Sent: Friday, 26 August 2016 3:58 AM
> > To: discuss@lists.openscad.org
> > Subject: Re: [OpenSCAD] Simple optimisation
> >
> > Hi,
> >
> > On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
> > > I have some code:
> > >
> > > dome (100,8);
> > > rotate ([90,0,0]) dome (100,8);
> > > rotate ([0,90,0]) dome (100,8);
> >
> > You can try:
> >
> > module dome2(a,b)
> > {
> > render()
> > dome(a,b);
> > }
> > dome2(100,8);
> > rotate([90,0,0]) dome2(100,8);
> > rotate([0,90,0]) dome2(100,8);
> >
> > Does this help?
> >
> >
> > I often use render() to speed-up viewing complex objects: It takes longer
> > to create the 1st preview, but viewing/rotating it is much faster.
> >
> >
> > Best regards,
> > Roland
> >
> >
> >
> > PS: In fact, I usually use:
> >
> > render_color_enable = true;
> > module render_color(c)
> > {
> > if(render_color_enable) {
> > color(c)
> > render()
> > children();
> > }
> > else {
> > color(c)
> > children();
> > }
> > }
> >
> > And add render_color(...) to many of my objects.
> >
> >
> > _______________________________________________
> > OpenSCAD mailing list
> > Discuss@lists.openscad.org
> > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
> >
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date:
> 08/25/16
>
>
>
> _______________________________________________
> OpenSCAD mailing list
> Discuss@lists.openscad.org
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>
AD
Ari Diacou
Mon, Aug 29, 2016 12:31 AM
The "living hinges" thread I started was sent from my email to the openscad
general discussion email address, if that has anything to do with anything.
On Thu, Aug 25, 2016 at 10:15 PM, Ronaldo Persiano rcmpersiano@gmail.com
wrote:
Michael, it seems the issue is with the archive. I have received messages
from the thread "Living Hinges" but it doesn't appear in the archive.
2016-08-25 21:15 GMT-03:00 OzAtMichael oz.at.michael@gmail.com:
Testing... sorry to hijack, but testing mailing list/forum, as this
thread didn't make it there.
Sent: Friday, 26 August 2016 3:58 AM
To: discuss@lists.openscad.org
Subject: Re: [OpenSCAD] Simple optimisation
Hi,
On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date:
The "living hinges" thread I started was sent from my email to the openscad
general discussion email address, if that has anything to do with anything.
On Thu, Aug 25, 2016 at 10:15 PM, Ronaldo Persiano <rcmpersiano@gmail.com>
wrote:
> Michael, it seems the issue is with the archive. I have received messages
> from the thread "Living Hinges" but it doesn't appear in the archive.
>
> 2016-08-25 21:15 GMT-03:00 OzAtMichael <oz.at.michael@gmail.com>:
>
>> Testing... sorry to hijack, but testing mailing list/forum, as this
>> thread didn't make it there.
>>
>> > -----Original Message-----
>> > From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of
>> Roland Koebler
>> > Sent: Friday, 26 August 2016 3:58 AM
>> > To: discuss@lists.openscad.org
>> > Subject: Re: [OpenSCAD] Simple optimisation
>> >
>> > Hi,
>> >
>> > On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
>> > > I have some code:
>> > >
>> > > dome (100,8);
>> > > rotate ([90,0,0]) dome (100,8);
>> > > rotate ([0,90,0]) dome (100,8);
>> >
>> > You can try:
>> >
>> > module dome2(a,b)
>> > {
>> > render()
>> > dome(a,b);
>> > }
>> > dome2(100,8);
>> > rotate([90,0,0]) dome2(100,8);
>> > rotate([0,90,0]) dome2(100,8);
>> >
>> > Does this help?
>> >
>> >
>> > I often use render() to speed-up viewing complex objects: It takes
>> longer
>> > to create the 1st preview, but viewing/rotating it is much faster.
>> >
>> >
>> > Best regards,
>> > Roland
>> >
>> >
>> >
>> > PS: In fact, I usually use:
>> >
>> > render_color_enable = true;
>> > module render_color(c)
>> > {
>> > if(render_color_enable) {
>> > color(c)
>> > render()
>> > children();
>> > }
>> > else {
>> > color(c)
>> > children();
>> > }
>> > }
>> >
>> > And add render_color(...) to many of my objects.
>> >
>> >
>> > _______________________________________________
>> > OpenSCAD mailing list
>> > Discuss@lists.openscad.org
>> > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>> >
>> >
>> >
>> > -----
>> > No virus found in this message.
>> > Checked by AVG - www.avg.com
>> > Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date:
>> 08/25/16
>>
>>
>>
>> _______________________________________________
>> OpenSCAD mailing list
>> Discuss@lists.openscad.org
>> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>>
>
>
> _______________________________________________
> OpenSCAD mailing list
> Discuss@lists.openscad.org
> http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org
>
>
O
OzAtMichael
Mon, Aug 29, 2016 4:31 AM
This is how I think it works. The input to "Match to Thread?" is in backlog ATM.
From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of Ari Diacou
Sent: Monday, 29 August 2016 10:31 AM
To: OpenSCAD general discussion
Subject: Re: [OpenSCAD] Simple optimisation
The "living hinges" thread I started was sent from my email to the openscad general discussion
email address, if that has anything to do with anything.
On Thu, Aug 25, 2016 at 10:15 PM, Ronaldo Persiano rcmpersiano@gmail.com wrote:
Michael, it seems the issue is with the archive. I have received messages from the thread "Living
Hinges" but it doesn't appear in the archive.
2016-08-25 21:15 GMT-03:00 OzAtMichael oz.at.michael@gmail.com:
Testing... sorry to hijack, but testing mailing list/forum, as this thread didn't make it there.
openscad.org] On Behalf Of Roland Koebler
Sent: Friday, 26 August 2016 3:58 AM
To: discuss@lists.openscad.org
Subject: Re: [OpenSCAD] Simple optimisation
Hi,
On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
I have some code:
dome (100,8);
rotate ([90,0,0]) dome (100,8);
rotate ([0,90,0]) dome (100,8);
You can try:
module dome2(a,b)
{
render()
dome(a,b);
}
dome2(100,8);
rotate([90,0,0]) dome2(100,8);
rotate([0,90,0]) dome2(100,8);
Does this help?
I often use render() to speed-up viewing complex objects: It takes longer
to create the 1st preview, but viewing/rotating it is much faster.
Best regards,
Roland
PS: In fact, I usually use:
render_color_enable = true;
module render_color(c)
{
if(render_color_enable) {
color(c)
render()
children();
}
else {
color(c)
children();
}
}
And add render_color(...) to many of my objects.
OpenSCAD mailing list
Discuss@lists.openscad.org
http://lists.openscad.org/mail
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7752 / Virus Database: 4647/12876 - Release Date: 08/25/16
This is how I think it works. The input to "Match to Thread?" is in backlog ATM.
_____
From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of Ari Diacou
Sent: Monday, 29 August 2016 10:31 AM
To: OpenSCAD general discussion
Subject: Re: [OpenSCAD] Simple optimisation
The "living hinges" thread I started was sent from my email to the openscad general discussion
email address, if that has anything to do with anything.
On Thu, Aug 25, 2016 at 10:15 PM, Ronaldo Persiano <rcmpersiano@gmail.com> wrote:
Michael, it seems the issue is with the archive. I have received messages from the thread "Living
Hinges" but it doesn't appear in the archive.
2016-08-25 21:15 GMT-03:00 OzAtMichael <oz.at.michael@gmail.com>:
Testing... sorry to hijack, but testing mailing list/forum, as this thread didn't make it there.
> -----Original Message-----
> From: Discuss [mailto:discuss-bounces@lists. <mailto:discuss-bounces@lists.openscad.org>
openscad.org] On Behalf Of Roland Koebler
> Sent: Friday, 26 August 2016 3:58 AM
> To: discuss@lists.openscad.org
> Subject: Re: [OpenSCAD] Simple optimisation
>
> Hi,
>
> On Sun, Aug 21, 2016 at 06:45:16PM +0100, Colin Smart wrote:
> > I have some code:
> >
> > dome (100,8);
> > rotate ([90,0,0]) dome (100,8);
> > rotate ([0,90,0]) dome (100,8);
>
> You can try:
>
> module dome2(a,b)
> {
> render()
> dome(a,b);
> }
> dome2(100,8);
> rotate([90,0,0]) dome2(100,8);
> rotate([0,90,0]) dome2(100,8);
>
> Does this help?
>
>
> I often use render() to speed-up viewing complex objects: It takes longer
> to create the 1st preview, but viewing/rotating it is much faster.
>
>
> Best regards,
> Roland
>
>
>
> PS: In fact, I usually use:
>
> render_color_enable = true;
> module render_color(c)
> {
> if(render_color_enable) {
> color(c)
> render()
> children();
> }
> else {
> color(c)
> children();
> }
> }
>
> And add render_color(...) to many of my objects.
>
>
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>
>
>
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