- LAS> concat-manual in=inset out=bordered sl=11 ss=11
nl=50 ns=50 maskval=0.0 overopt=replac
This example creates a ten-sample border around the
image INSET in the output image BORDERED.
- LAS> concat-manual in=(one two three four five)
out=new sl=(1 1 11 31 21) ss=(1 11 1 26 6) nl=50
ns=50 maskval=(0.0 0.0 0.0 0.0 0.0)
overopt=(replac replac replac replac replac)
This example overlays five input images of various
sizes into the output image NEW.
- LAS> concat-auto in=(one two) out=out
ulcoors=(1000,1000) outsize=(500,500)
maskval=(0.0 0.0) overopt=(replac replac)
This example concatenates two 3-band images into the
multi-band output image OUT. The upper-left corner of
the output image begins at the projection coordinates
of 1000,1000 and the lower-right corner of the output
image is at the projection coordinates of 1490,1490.
The projection distance is (10,10).
NOTE: Images ONE and TWO have the same upper-left corner
coordinates.
- LAS> concat-manual in=(one two three) out=new
sl=260,340,60 ss=230,60,60 nl=440 ns=440
maskval=(0.0 0.0 0.0) overopt=(replac replac leave)
This example concatenates three single-band images together.
Image ONE is placed into the output image first
at location 260, 230. Image TWO consists of two grey
scales and is placed into the output image next at location
340, 60. Because OVEROPT(2) is set to REPLAC, the
pixel values of image TWO will replace the pixel values
of image ONE except where the pixels of image TWO have
values equal to MASKVAL. It is assumed that the pixels
between the two grey scales have values equal to MASKVAL.
Image THREE is placed into the output image at
location 60, 60. Because OVEROPT(3) is set to LEAVE,
the pixel values of image THREE will NOT replace the
pixel values of image ONE within the overlap area of
images ONE and THREE. The output image will be 440 by
440.
SUBCOMMAND -MANUAL
The program begins with the standard initialization and retrieval of
user-specified parameters. The data type of the output image is set by
determining the maximum data type of the input images. If an output
image is requested, the output image is opened to the specified
dimensions (NL and NS parameters) and padded with the first MASKVAL
value. If OUT is made NULL, the first input image is assumed to be the
output image and is opened for update mode. The input images are then
sequentially overlaid into the output image according to the appropriate
values in the SL and SS parameters. The output image is closed and
reopened for update after each image has been overlaid. After the
output image is completed, a second pass is made if the min and max
values of each band were requested. An associated history file is
created for the output image and a completion message is output.
SUBCOMMAND -AUTO
The program begins with the standard initialization and retrieval of
user-specified parameters. The data type of the output image is set by
determining the maximum data type of the input images. Each of the
input DDR files are read and valid flag of the corner projection
coordinates are checked. If any of the flags are not VALID, an error
message will be output and the processing will be terminated. The
upper-left corner values of each input image are compared to determine
which image will be placed in the upper-left corner of the output image
if ULCOORS has been defaulted. Otherwise, the values of the parameter
ULCOORS will be used as the upper-left corner of the output image. The
starting line and sample location of each input image within the output
image is then calculated. The size of the output image is calculated
from the the values of the parameter OUTSIZE or the lower-right corners
of the input images if defaulted. If an output image is specified, the
whole image is then padded with the first MASKVAL value. If OUT is
made NULL, the first input image is assumed to be the output image and
is opened for update mode. The parameter OUTSIZE will then be
considered as the number of lines and samples which will be updated.
The input images are then sequentially overlaid into the output image
according to the calculated projection values in the input DDR file.
The output image is closed and reopened for update after each image has
been overlaid. After the output image is completed, a second pass is
made if the min and max values of each band were requested. An
associated history file is created for the output image and a
completion message is output.
- [concat-alloc] Error allocating dynamic memory
An error occurred while trying to dynamically allocate buffer
space.
- [concat-ddr] Error reading DDR file
The DDR file for the specified image either does not exist
or is not in the correct format. Create a new DDR file.
- [concat-fatal] Fatal error encountered
A fatal error was encountered during processing. The error
message that is displayed immediately preceding this message
is the specific error that was encountered.
- [concat-invalid] Corner projection <XXXXXX>'s of image <XX>
are invalid
The projection <XXXXXX> validity flag of image <XX> was
found to be invalid. The starting line and sample location
of this image cannot be automatically calculated. Use the
-MANUAL subcommand or place valid <XXXXXX>'s in the DDR of
image <XX>.
- [concat-lname] Error calculating LAS name
There was an error calculating the LAS name from the specified
host name. Check the syntax of the input names.
- [concat-location] Starting <XXXX> location is outside
output image
The <XXXX> location exceeds the specified bounds of the
image. Change the value of <XXXX> accordingly and rerun
the program.
- [concat-maskval] Mask value is not in range of output image
The mask value specified is not valid for the data type of
the output image. Change the value of MASKVAL accordingly
and rerun the program.
- [concat-nbands] IN entries do not have the same number of
bands
The number of bands in each element of IN must be the same.
Remove or replace the incorrect input images and rerun the
program.
- [concat-pdist] The projection distance of <XXXXXX> does not
equal the projection distance of the other
input images
The projection distance of <XXXXX> is not the same as the
distance of the other input images. The starting line and
sample of these images cannot be automatically calculated.
Use the -MANUAL subcommand.
- {concat-size] NL and NS must be specified
NL and NS must be specified if an output file is to be
created. Specify a value for NL and NS.
- [concat-tolerance] The projection coordinates of <XXXXX>
are not within tolerance of the other
input images
The projection coordinates of <XXXXX> are not within the
tolerance of the other input images that make up one logical
image. All images that are used to form one logical image
have to have the corner projection coordinates within the
specified tolerance. Increase the tolerance or use an image
with corner coordinates that are within tolerance of the
other images.
- [concat-unequal] The number of values specified for IN and
<XXX> are not equal
The same number of values must be entered for IN and the
specified parameter. Enter the appropriate number of values
and rerun the program.
- [concat-window] Images do not have same window size
If more than one image is specified in an IN entry, then the
window size of each image in that entry must be the same.
Change the window specification and rerun the program.
- [concat-zone] UTM zones are not the same
If the projection is UTM, the images must be in the same zone.
Make sure that the images should be concatenated.