align with linescan example defaults

launch_linescan.ps1

@@ -1,18 +1,49 @@
-# Pipeline with tee to display and save frames on rollover
+# Linescan Pipeline Launcher
+# Simple wrapper around launch-ids.py with sensible defaults
 # Run from workspace root: c:\dev\gst-plugins-vision
-# Or adjust the config-file path below
+
+param(
+    [Parameter(Position=0)]
+    [ValidateSet('day', 'night')]
+    [string]$Mode = 'day',
+    
+    [switch]$Help
+)
+
+if ($Help) {
+    Write-Host @"
+Linescan Pipeline Launcher
+
+Usage: .\launch_linescan.ps1 [day|night] [-Help]
+
+Modes:
+  day   - Day mode: exposure=0.2ms, gain=0, framerate=200fps (default)
+  night - Night mode: exposure=5.25ms, gain=65, framerate=200fps
+
+All settings are configured in launch-ids.py with these defaults:
+  - Config: ini/roi-night.ini
+  - Device ID: 1
+  - Intervalometer: enabled
+  - Ramp rate: fast
+  - Update interval: 500ms
+  - Brightness deadband: 10.0
+  - Gain max: 82
+  - Target brightness: 80
+  - Log file: timelapse.csv
+
+Examples:
+  .\launch_linescan.ps1           # Run in day mode (default)
+  .\launch_linescan.ps1 day       # Run in day mode (explicit)
+  .\launch_linescan.ps1 night     # Run in night mode
+  .\launch_linescan.ps1 -Help     # Show this help
+"@
+    exit 0
+}
 
 $env:GST_DEBUG="linescan:5"
 
-# Note: Run this from the workspace root (c:\dev\gst-plugins-vision)
-# If running from gst/linescan/, use: config-file=../../ini/roi-night.ini
-uv run .\scripts\launch-ids.py `
-     --config .\ini\2456x4pix-500top-cw-extragain.ini `
-     --device-id 1 `
-     --framerate 750 `
-     --gain 0 `
-     --gain-boost `
-     --exposure 0.04 `
-     --host 10.81.2.183 `
-     --port 5000 `
-     --control-port 5001
+Write-Host "Launching linescan pipeline in $Mode mode..."
+Write-Host ""
+
+# All configuration is handled by launch-ids.py defaults
+uv run .\scripts\launch-ids.py --mode $Mode