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d9c8b0d250 | ||
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800ed932bb |
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@@ -63,3 +63,4 @@ Desktop.ini
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*.pdf
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index.md.bak
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hdm-lehrauftrag-uebersicht.md
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slides/assets-original/
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@@ -1,6 +1,6 @@
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# Makefile for Marp Slides Project
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.PHONY: help build dev watch pdf html clean install deploy copy-assets
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.PHONY: help build dev watch pdf html clean install deploy deploy-html copy-assets optimize-images
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# Directories
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SLIDES_DIR = slides
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@@ -27,10 +27,14 @@ help:
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@echo " make pdf - Export all slides to PDF"
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@echo " make html - Export all slides to HTML"
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@echo ""
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@echo " Deploy:"
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@echo " make deploy - Full build + deploy (HTML, PDF, assets)"
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@echo " make deploy-html - HTML only deploy (faster)"
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@echo ""
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@echo " Other:"
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@echo " make optimize-images - Resize images to max 1920px"
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@echo " make clean - Remove generated files"
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@echo " make install - Install dependencies"
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@echo " make deploy - Deploy slides to server"
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# Ensure build directory exists
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$(BUILD_DIR)/.exists:
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@@ -91,7 +95,18 @@ install:
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@echo "Installing dependencies..."
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npm install
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# Deploy slides
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# Optimize images (resize to max 1920px, requires nix-shell -p imagemagick)
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optimize-images:
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@echo "Backing up originals to assets-original/..."
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@mkdir -p $(SLIDES_DIR)/assets-original
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@cp $(SLIDES_DIR)/assets/*.png $(SLIDES_DIR)/assets-original/ 2>/dev/null || true
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@cp $(SLIDES_DIR)/assets/*.jpg $(SLIDES_DIR)/assets-original/ 2>/dev/null || true
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@echo "Resizing images to max 1920px..."
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@nix-shell -p imagemagick --run 'for img in $(SLIDES_DIR)/assets/*.png; do magick "$$img" -resize "1920x>" -quality 85 "$$img"; done'
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@nix-shell -p imagemagick --run 'for img in $(SLIDES_DIR)/assets/*.jpg; do magick "$$img" -resize "1920x>" -quality 85 "$$img"; done'
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@echo "Done! Originals backed up in assets-original/"
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# Deploy slides (full build)
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deploy: build
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@echo "Deploying slides..."
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@echo "Copying HTML files..."
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@@ -100,3 +115,10 @@ deploy: build
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scp -r $(BUILD_DIR)/assets/ tengo@tuttle.uberspace.de:/home/tengo/html/hdm/223015b/
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@echo "Copying materials..."
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scp -r $(BUILD_DIR)/materials/ tengo@tuttle.uberspace.de:/home/tengo/html/hdm/223015b/ 2>/dev/null || true
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# Deploy HTML only (faster, no PDF rebuild)
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deploy-html: html
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@echo "Deploying HTML only..."
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scp $(BUILD_DIR)/*.html tengo@tuttle.uberspace.de:/home/tengo/html/hdm/223015b/
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scp -r $(BUILD_DIR)/assets/ tengo@tuttle.uberspace.de:/home/tengo/html/hdm/223015b/
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scp -r $(BUILD_DIR)/materials/ tengo@tuttle.uberspace.de:/home/tengo/html/hdm/223015b/ 2>/dev/null || true
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@@ -191,6 +191,11 @@ Eselsbrücke: 1 Byte = 1 Buchstabe/Symbol (in ASCII/UTF-8 für einfache Zeichen)
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Vorgeschichte:
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US-ASCII (1967) Code Chart
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- 7 Bit = 128 Zeichen
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- Erste 32: Steuerzeichen (nicht druckbar)
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- Zeichen 32-126: Druckbar (Buchstaben, Ziffern, Satzzeichen)
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- Keine Umlaute, kein ñ, kein é
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- "American Standard" → Rest der Welt ausgeschlossen
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"Ich möchte, dass ihr das mit mir jetzt gemeinsam lesen lernt; stellt euch vor ihr seid ArchäologInnen."
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@@ -211,7 +216,6 @@ US-ASCII (1967) Code Chart
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»256 Shades of Gray«
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256 Graustufen: 0 = Schwarz, 255 = Weiß
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-->
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@@ -238,6 +242,7 @@ Jeder Kanal 0-255 → 256³ = 16.777.216 Farben ("True Color")
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Das menschliche Auge kann etwa 10 Millionen Farben unterscheiden
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→ 24 Bit reicht für fotorealistische Bilder
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-->
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---
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<!-- _header: '' -->
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@@ -294,6 +299,13 @@ background-color: #FF0000; = Rot
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---
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<!-- _header: '' -->
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<!-- _footer: '' -->
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---
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# Das Problem: Sprachen
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**Die Welt hat mehr als 256 Zeichen!**
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@@ -317,22 +329,6 @@ Chaos: Verschiedene Standards für verschiedene Sprachen
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---
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<!-- _header: '' -->
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<!-- _footer: '' -->
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<!--
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ASCII-Tabelle (1963)
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7 Bit = 128 Zeichen
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Erste 32: Steuerzeichen (nicht druckbar)
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Zeichen 32-126: Druckbar (Buchstaben, Ziffern, Satzzeichen)
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Keine Umlaute, kein ñ, kein é
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"American Standard" → Rest der Welt ausgeschlossen
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-->
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---
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# Unicode: Ein Standard für alle
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**Unicode (1991):**
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@@ -380,19 +376,6 @@ UTF-8-Kodierung: Variable Länge spart Speicher bei ASCII
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---
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<!-- _header: '' -->
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<!-- _footer: '' -->
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<!-- _backgroundColor: #000 -->
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<!--
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Hex-Binär-Umrechnungstabelle
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Jede Hex-Ziffer = 4 Bits
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-->
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---
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# Hexadezimal: Lesbarkeit
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**Binär ist unleserlich:**
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@@ -460,6 +443,10 @@ Hex-Editor = Standard-Tool für Dateianalyse und Reverse Engineering
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<!--
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Hex-Editor-Screenshot mit PNG-Datei
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Erste Bytes: 89 50 4E 47 = PNG-Signatur
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- 89: non-printable character (signalisiert, dass wir hier außerhalb von ASCII sind)
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- 50: P
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- 4E: N
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- 47: G
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IHDR = Image Header (Breite, Höhe, Farbtiefe)
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Zeigen, wie man Magic Number liest
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Tool: HxD (Windows), Hex Fiend (Mac), xxd (Linux)
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@@ -467,6 +454,13 @@ Tool: HxD (Windows), Hex Fiend (Mac), xxd (Linux)
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---
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<!-- _header: '' -->
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<!-- _footer: '' -->
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---
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# Magic Numbers
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**Dateityp-Identifikation durch erste Bytes**
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After Width: | Height: | Size: 2.0 MiB |
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Before Width: | Height: | Size: 7.7 MiB After Width: | Height: | Size: 4.0 MiB |
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Before Width: | Height: | Size: 5.8 MiB After Width: | Height: | Size: 3.0 MiB |
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