There are two ways to use SoftArtisans ImgWriter tool for merging images.
The first, and easier of the two, is to use the AddWatermark method, which
doesn't give you as much control, but takes a lot of the guesswork out
of merging images. The second is to use the MergeWithImage method, which
gives you a lot of control over the placement and look of the image you
are merging in.
AddWatermark Method
If you do not require as much control over the merged images and want
to let ImgWriter do the work for you, use the AddWatermark method. AddWatermark
has only one required parameter, the file name of the watermark image.
All of AddWatermark's other parameters are optional.
AddWatermark(Watermark Source (required), [Position (optional)], [Opacity
(optional)], [TransitionColor (optional)], [ShrinkToFit (optional)])
AddWatermark Parameters:
| Watermark Source |
required |
Value can be a file name, an ADO Recordset Field, or
an array of bytes |
| Position |
optional |
Defaults to saiCenterLeft |
| Opacity |
optional |
Defaults to 0.5 - 0 is transparent, 1 is opaque |
| TransitionColor |
optional |
Defaults to white or 16777215 or 0xFFFFFF |
| ShrinkToFit |
optional |
Defaults to True or 1 |
AddWatermark Position Constants (second parameter, optional):
| saiTopMiddle |
= |
0 |
| saiCenterMiddle |
= |
1 |
| saiBottomMiddle |
= |
2 |
| saiTopLeft |
= |
3 |
| saiCenterLeft |
= |
4 |
| saiBottomLeft |
= |
5 |
| saiTopRight |
= |
6 |
| saiCenterRight |
= |
7 |
| saiBottomRight |
= |
8 |
Use AddWatermark in your code:
<%
.
.
.
'--- Instantiate SoftArtisans ImgGen Component
Set objImageGen = Server.CreateObject("SoftArtisans.ImageGen")
'---
'--- Load existing image
objImageGen.LoadImage "c:\oldimage.jpg"
'---
'--- Add the image in 'watermark.bmp' using all defaults
objImageGen.AddWatermark "C:\temp\watermark.bmp"
'---
'--- Save new image
objImageGen.SaveImage saiFile, saiJPG, "c:\newimage.jpg"
.
.
.
%> |
MergeWithImage Method
If you need more control over the merged images, use the MergeWithImage
method. MergeWithImage has five required parameters to give you explicit
control and flexibility over where the merged image appears in the original
image.
MergeWithImage(X-axis coordinate (required), Y-axis coordinate (required),
Image Source (required), Opacity (required), TransColor (required), [ShrinkToFit
(optional)])
MergeWithImage Parameters:
| X-axis coordinate |
required |
Distance, in pixels, between the left border of the
main image and the left border of the image to merge with the main
image |
| Y-axis coordinate |
required |
Distance, in pixels, between the top border of the main image and
the top border of the image to merge with the main image |
| Image Source |
required |
File path and name of the image to merge with the main image |
| Opacity |
required |
At 0, the merged image is completely transparent
At 1, it is completely opaque |
| TransColor |
required |
The color of the top (merged) image that will be made transparent
when Opacity is set to a value less than 1 |
| ShrinkToFit |
optional |
Defaults to true or 1 |
Use MergeWithImage in your code:
<%
.
.
.
'--- Instantiate SoftArtisans ImgGen Component
Set objImageGen = Server.CreateObject("softartisans.ImageGen")
'---
'--- Load existing image
objImageGen.LoadImage "c:\oldimage.jpg"
'---
'--- Merge another image in with the loaded image
objImageGen.MergeWithImage 50, 300, "c:\temp\anotherimage.jpg",
0.2, 1
'---
'--- Save new image
objImageGen.SaveImage saiFile, saiJPG, "c:\mergedimage.jpg"
.
.
.
%> |
|
