|This is the standard GoDot 4Bit format loader.
It offers two levels of functionality: Simply loading a picture and along
with it replacing the previous one (Replace), and combining
a new picture from portions already in memory and others that must be added
from elsewhere (Compose). In either of the levels you can choose
the source of the image to add, if you committed an
Undo or save to Temp before
(Select Source gadget). If not, Disk is
defaulted as source for the added picture. Possible other captions of this
gadget may be Temp, Undo, PFox, or VDC2.
With the release of loader version 1.10 you can also intentionally manipulate
only parts of the image by working with clips (see
mod.ClipWorks, or German
To get a clip (but also complete images) to a certain position on screen
you have to at first set this position with mod.ClipWorks and then control
the process with the Select Load gadget: Load to Full
will load to the default position (for images) row 0, column 0, Load
to Clip will load an image/clip to the position of the current clip
no matter what width or height this is, Load into Clip will
do the same but will observe the borders of the current clip setting, and
finally Load to Origin - a clip will be loaded to the position
it originally came from whereas a normal image acts as if it was Loaded
|Being in the Compose section of the loader, you can choose whether the
image/clip to add should be loaded behind the present image
(Background), or in front (Foreground), thus superimposing
it, or whether it should be merged into the present image by three different
levels of intensity (Mixed). The first two options use color black
for doing their job.
Everywhere the current picture is black (i.e. has a gray value of $00), Background will read the new picture, otherwise not. The added picture fills the black portions of the current. A desirable feature if you want to provide a single motif, perhaps a headline or a logo, with another background.
Option Foreground works vice-versa: everywhere the added picture/clip is black, the current remains visible. There's a sense in this loader's facility too, if you may have composed a picture, and just finally want to superimpose a headline to it. In the end, the result of either operation is identical, only the order of the actions has been reversed.
If you like to let one picture shine through the other, you use option Mixed. Internally, Mixed will add all gray values (the current and those just loaded), devide them by an appropriate factor (you can choose with the percentage selector), and only then assign the result to the 4bit memory. Value $00 (black) will take effect to the result. Note: pictures processed by Mixed, change their gray values, and will result in false colored displays. You may however work around with mod.ApplyColors. Another tip to spare time may be to save the display with "Undo Rendered" everytime you start a new action.
Displayed in "Image Information":
Saver: svr.4BitGodot, svr.4BitClip
Copyright © 1998, A. Dettke, Last Updated - 07/23/98