void ViewPlotLineYX( View view, double slope, double intercept) {
double x1, x2, y1, y2;
if ( view->user_top > view->user_bottom ) {
y1 = view->user_bottom;
x1 = slope * y1 + intercept;
if (x1 > view->user_right) {
x1 = view->user_right;
y1 = (x1 - intercept) / slope;
}
if (x1 < view->user_left) {
x1 = view->user_left;
y1 = (x1 - intercept) / slope;
}
y2 = view->user_top;
x2 = slope * y2 + intercept;
if (x2 > view->user_right) {
x2 = view->user_right;
y2 = (x2 - intercept) / slope;
}
if (x2 < view->user_left) {
x2 = view->user_left;
y2 = (x2 - intercept) / slope;
}
}
else {
y1 = view->user_top;
x1 = slope * y1 + intercept;
if (x1 > view->user_right) {
x1 = view->user_right;
y1 = (x1 - intercept) / slope;
}
if (x1 < view->user_left) {
x1 = view->user_left;
y1 = (x1 - intercept) / slope;
}
y2 = view->user_bottom;
x2 = slope * y2 + intercept;
if (x2 > view->user_right) {
x2 = view->user_right;
y2 = (x2 - intercept) / slope;
}
if (x2 < view->user_left) {
x2 = view->user_left;
y2 = (x2 - intercept) / slope;
}
}
ViewLine(view, x1, y1, x2, y2);
}
void ViewPlotLine (View view, double slope, double intercept) {
double x1, x2, y1, y2;
if ( view->user_top > view->user_bottom ) {
x1 = view->user_left;
y1 = slope * x1 + intercept;
if (y1 > view->user_top) {
y1 = view->user_top;
x1 = (y1 - intercept) / slope;
}
if (y1 < view->user_bottom) {
y1 = view->user_bottom;
x1 = (y1 - intercept) / slope;
}
x2 = view->user_right;
y2 = slope * x2 + intercept;
if (y2 > view->user_top) {
y2 = view->user_top;
x2 = (y2 - intercept) / slope;
}
if (y2 < view->user_bottom) {
y2 = view->user_bottom;
x2 = (y2 - intercept) / slope;
}
}
else {
x1 = view->user_left;
y1 = slope * x1 + intercept;
if (y1 < view->user_top) {
y1 = view->user_top;
x1 = (y1 - intercept) / slope;
}
if (y1 > view->user_bottom) {
y1 = view->user_bottom;
x1 = (y1 - intercept) / slope;
}
x2 = view->user_right;
y2 = slope * x2 + intercept;
if (y2 < view->user_top) {
y2 = view->user_top;
x2 = (y2 - intercept) / slope;
}
if (y2 > view->user_bottom) {
y2 = view->user_bottom;
x2 = (y2 - intercept) / slope;
}
}
ViewLine(view, x1, y1, x2, y2);
}
void ProcessChannel(ChannelSearchInfo * info)
{
switch (info->type)
{
case CH_LINE_TYPE:
ViewLine(info->hChannel);
break;
case CH_SPECTRUM_TYPE:
ViewSpectrum(info->hChannel);
break;
case CH_DOTS_TYPE:
ViewDots(info->hChannel);
break;
case CH_TEXT_TYPE:
ViewText(info->hChannel);
break;
default:
ViewData(info->hChannel);
}
}