Components don't show up

Hi All

I'm doing a glare analysis using Radiance in IES Virtual Environments.

For some reason, the components in the room sometimes don't show up and
I get the following error:

0.00 %, oconv started processing 0.0000 hrs.

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad"

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\Screen16.rad"

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\PERPET~1.RAD"

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\PHONE1~1.RAD"

warning - (!xform2 -rz 90.000 -t 0.544 1.084 0.701
\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad): empty file

warning - (!xform2 -rz 90.000 -t 0.544 1.084 0.701
\CHRIST~1\100501~1\MELBOU~1\Radiance\Screen16.rad): empty file

warning - (!xform2 -t -0.469 0.492 0.021
\CHRIST~1\100501~1\MELBOU~1\Radiance\PERPET~1.RAD): empty file

warning - (!xform2 -rz 90.000 -t -0.023 0.839 0.053
\CHRIST~1\100501~1\MELBOU~1\Radiance\PHONE1~1.RAD): empty file

99.00 %, oconv finished after 0.0000 hrs.

This error came up after I changed the sky file, but it happened quite
randomly before, so I'm not sure whether this has anything to do with
it. Sometimes the same simulation worked fine when I ran it on a
different PC. However, the problem seems to spread.

Did this happen to anyone before? Can anyone point to what am I doing
wrong?

Greetings from Melbourne

Chris

Kind regards,

Christoph Begert
Associate

sbe

sustainable built environments

Innovative ideas, collaborative design, practical solutions

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of any anomalies.

Hi Christoph!

I'm doing a glare analysis using Radiance in IES Virtual Environments.
  

I do not know that environment, however it seams that it simply calls rad on a scene?

For some reason, the components in the room sometimes don't show up and
I get the following error:
0.00 %, oconv started processing 0.0000 hrs.

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad"
  

(...)

99.00 %, oconv finished after 0.0000 hrs.
  

Hm, it looks like you have a modified version of oconv, never seen the time output for it before. I also do not know xform2. However the message is clear - the files are not found. Either this is a mistake by xform2 or by the tool that was supposed to generate these files. So the first thing to do is to check whether the listed files are at the given locations. I guess the weird directory name have to do with some windows file-system limitations? What surprises me is that xform2 uses backslashes for directories - is this the modification against xform that led to the name change?

This error came up after I changed the sky file, but it happened quite
randomly before, so I'm not sure whether this has anything to do with
it. Sometimes the same simulation worked fine when I ran it on a
different PC. However, the problem seems to spread.
  

If it happened randomly before there seam to be other reasons.

So as mentioned before, it seams that the commands involved are not really part of radiance but some derived, modified binaries. Start debugging by finding out whether the error messages correctly detect these missing files. Then one could start to find out how this IES Virtual Environment works and creates / names / writes the files. In radiance, one would also typically have a variable RAYPATH set including all file system paths where scene files are to be found.

Cheers

Lars.

Chris,

Xform2 is an additional program that IES created. Similar to xform, IES uses xform2 to create rectangles of arbitrary dimension for, it seems, use as workplanes (and perhaps other functions). It does this by applying arbitrary scaling in the x and y dimensions (independently) on a unit square polygon (z = 0.8) and translating the output to the desired location in the scene. In addition to the usual xform options, xform2 has -sx and -sy to perform the scaling in the x & y dims.

I came across this IES peculiarity when transferring IES created geometry to other platforms for simulation using standard (UNIX) Radiance. In those instances it was simply a matter of stripping out the xform2 commands, which didn't affect the building geometry since their use was confined to generating workplanes. However, from the error messages that you posted it seems that xform2 is being used for more general transformations where xform would suffice. Perhaps IES have replaced xform with their own xform2. As an aside, I'm surprised to see any form of xform/2 command used for general building geometry created in IES because I expected its 3D modeller to create explicit geometry (for all but the workplanes).

-John

···

-----------------------------------------------
Dr. John Mardaljevic
Reader in Daylight Modelling
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

[email protected]
http://www.iesd.dmu.ac.uk/~jm

Thanks John and Lars

I tried a few things based on your comments, e.g. calling up xform
instead of xform2, making sure that the location input is ok, but
unfortunately without success.

The problem really seems to be specific to certain computers. One file
which ran fine yesterday on my colleagues computer, didn't work on mine
when I tried to run it just afterwards.

Could it be that there is something in e.g. my windows registry that
causes this issue? The batch files created by VE include the following
line before they run the radiance programs:

SET PATH=C:\Windows;C:\Windows\system32;C:\Program Files\IES\VE
6\apps\ray

Cheers
Chris

Kind regards,

Christoph Begert

Associate

sbe

sustainable built environments

Innovative ideas, collaborative design, practical solutions

···

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John
Mardaljevic
Sent: Monday, 10 May 2010 7:59 PM
To: [email protected]
Subject: [Radiance-general] Components don't show up

Chris,

Xform2 is an additional program that IES created. Similar to xform,
IES uses xform2 to create rectangles of arbitrary dimension for, it
seems, use as workplanes (and perhaps other functions). It does this
by applying arbitrary scaling in the x and y dimensions
(independently) on a unit square polygon (z = 0.8) and translating the
output to the desired location in the scene. In addition to the usual
xform options, xform2 has -sx and -sy to perform the scaling in the x
& y dims.

I came across this IES peculiarity when transferring IES created
geometry to other platforms for simulation using standard (UNIX)
Radiance. In those instances it was simply a matter of stripping out
the xform2 commands, which didn't affect the building geometry since
their use was confined to generating workplanes. However, from the
error messages that you posted it seems that xform2 is being used for
more general transformations where xform would suffice. Perhaps IES
have replaced xform with their own xform2. As an aside, I'm surprised
to see any form of xform/2 command used for general building geometry
created in IES because I expected its 3D modeller to create explicit
geometry (for all but the workplanes).

-John

-----------------------------------------------
Dr. John Mardaljevic
Reader in Daylight Modelling
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

[email protected]
http://www.iesd.dmu.ac.uk/~jm

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Lars
O. Grobe
Sent: Monday, 10 May 2010 11:21 AM
To: Radiance general discussion
Subject: Re: [Radiance-general] Components don't show up

Hi Christoph!

I'm doing a glare analysis using Radiance in IES Virtual Environments.
  

I do not know that environment, however it seams that it simply calls
rad on a scene?

For some reason, the components in the room sometimes don't show up

and

I get the following error:
0.00 %, oconv started processing 0.0000 hrs.

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad"
  

(...)

99.00 %, oconv finished after 0.0000 hrs.
  

Hm, it looks like you have a modified version of oconv, never seen the
time output for it before. I also do not know xform2. However the
message is clear - the files are not found. Either this is a mistake by
xform2 or by the tool that was supposed to generate these files. So the
first thing to do is to check whether the listed files are at the given
locations. I guess the weird directory name have to do with some windows

file-system limitations? What surprises me is that xform2 uses
backslashes for directories - is this the modification against xform
that led to the name change?

This error came up after I changed the sky file, but it happened quite
randomly before, so I'm not sure whether this has anything to do with
it. Sometimes the same simulation worked fine when I ran it on a
different PC. However, the problem seems to spread.
  

If it happened randomly before there seam to be other reasons.

So as mentioned before, it seams that the commands involved are not
really part of radiance but some derived, modified binaries. Start
debugging by finding out whether the error messages correctly detect
these missing files. Then one could start to find out how this IES
Virtual Environment works and creates / names / writes the files. In
radiance, one would also typically have a variable RAYPATH set including

all file system paths where scene files are to be found.

Cheers

Lars.

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

All I can recall from memory is that IES didn't like spaces in file names at one point in its history.

···

Sent from my iPhone

On 11 May 2010, at 07:14, "Christoph Begert - SBE" <[email protected] > wrote:

Thanks John and Lars

I tried a few things based on your comments, e.g. calling up xform
instead of xform2, making sure that the location input is ok, but
unfortunately without success.

The problem really seems to be specific to certain computers. One file
which ran fine yesterday on my colleagues computer, didn't work on mine
when I tried to run it just afterwards.

Could it be that there is something in e.g. my windows registry that
causes this issue? The batch files created by VE include the following
line before they run the radiance programs:

SET PATH=C:\Windows;C:\Windows\system32;C:\Program Files\IES\VE
6\apps\ray

Cheers
Chris

Kind regards,

Christoph Begert

Associate

sbe

sustainable built environments

Innovative ideas, collaborative design, practical solutions

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John
Mardaljevic
Sent: Monday, 10 May 2010 7:59 PM
To: [email protected]
Subject: [Radiance-general] Components don't show up

Chris,

Xform2 is an additional program that IES created. Similar to xform,
IES uses xform2 to create rectangles of arbitrary dimension for, it
seems, use as workplanes (and perhaps other functions). It does this
by applying arbitrary scaling in the x and y dimensions
(independently) on a unit square polygon (z = 0.8) and translating the
output to the desired location in the scene. In addition to the usual
xform options, xform2 has -sx and -sy to perform the scaling in the x
& y dims.

I came across this IES peculiarity when transferring IES created
geometry to other platforms for simulation using standard (UNIX)
Radiance. In those instances it was simply a matter of stripping out
the xform2 commands, which didn't affect the building geometry since
their use was confined to generating workplanes. However, from the
error messages that you posted it seems that xform2 is being used for
more general transformations where xform would suffice. Perhaps IES
have replaced xform with their own xform2. As an aside, I'm surprised
to see any form of xform/2 command used for general building geometry
created in IES because I expected its 3D modeller to create explicit
geometry (for all but the workplanes).

-John

-----------------------------------------------
Dr. John Mardaljevic
Reader in Daylight Modelling
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

[email protected]
http://www.iesd.dmu.ac.uk/~jm

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Lars
O. Grobe
Sent: Monday, 10 May 2010 11:21 AM
To: Radiance general discussion
Subject: Re: [Radiance-general] Components don't show up

Hi Christoph!

I'm doing a glare analysis using Radiance in IES Virtual Environments.

I do not know that environment, however it seams that it simply calls
rad on a scene?

For some reason, the components in the room sometimes don't show up

and

I get the following error:
0.00 %, oconv started processing 0.0000 hrs.

xform2: cannot find file
"\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad"

(...)

99.00 %, oconv finished after 0.0000 hrs.

Hm, it looks like you have a modified version of oconv, never seen the
time output for it before. I also do not know xform2. However the
message is clear - the files are not found. Either this is a mistake by
xform2 or by the tool that was supposed to generate these files. So the
first thing to do is to check whether the listed files are at the given
locations. I guess the weird directory name have to do with some windows

file-system limitations? What surprises me is that xform2 uses
backslashes for directories - is this the modification against xform
that led to the name change?

This error came up after I changed the sky file, but it happened quite
randomly before, so I'm not sure whether this has anything to do with
it. Sometimes the same simulation worked fine when I ran it on a
different PC. However, the problem seems to spread.

If it happened randomly before there seam to be other reasons.

So as mentioned before, it seams that the commands involved are not
really part of radiance but some derived, modified binaries. Start
debugging by finding out whether the error messages correctly detect
these missing files. Then one could start to find out how this IES
Virtual Environment works and creates / names / writes the files. In
radiance, one would also typically have a variable RAYPATH set including

all file system paths where scene files are to be found.

Cheers

Lars.

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

Another peculiarity of IES, at least the Radiance part, is that it doesn't like to work from anything other than the system disk, i.e. trying to work from a project saved on USB stick/drive nearly always leads to problems (I imagine it's the same for FW drives). You're advised to save a project as a CAB file and copy that if you want to transfer a project between computers. Probably best to ensure also that the various PCs are running the same version of IES.

-John

···

-----------------------------------------------
Dr. John Mardaljevic
Reader in Daylight Modelling
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

[email protected]
http://www.iesd.dmu.ac.uk/~jm