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Add architecture diagram for Δ-Engine
This file contains a detailed graph representation of the Δ-Engine architecture, including various clusters for physics mechanics, IO infrastructure, and platform-dependent toolchains.
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‎paper/architecture.dot‎

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digraph newtonian_rti {
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subgraph cluster_engine {
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fontname="Helvetica"
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#8F8F8F"
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color="#8F8F8F"
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fontcolor="#FFFFFF"
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fontsize=12
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penwidth=1.2
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margin=16
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graph [
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rankdir=TB
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fontname="Helvetica"
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fontsize=20
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bgcolor="transparent"
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pad=0.5
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nodesep=0.3
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ranksep=0.25
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label="Δ-Engine Architecture (GPLv3)"
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labelloc=t
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labeljust=c
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splines=false
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compound=true
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]
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node [
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fontname="Helvetica"
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shape=box
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style="rounded,filled"
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penwidth=0.8
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width=5.5
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margin="0.25,0.18"
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]
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edge [
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fontname="Helvetica"
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fontsize=10
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arrowhead=vee
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arrowsize=0.7
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penwidth=0.8
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color="#9C9A92"
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]
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// ── Newtonian RII — Amber ─────────────────────────────────────────────
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subgraph cluster_rti {
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label="[0] Newtonian RTI — Physics Spaces\nTop-level simulation environment and scene API"
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fontname="Helvetica"
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#633806"
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color="#EF9F27"
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fontcolor="#FFFFFF"
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fontsize=12
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#733806"
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color="#733806"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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_inertia [ label="Inertial Reference Frames" ]
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_forceacc [ label="Accelerating Component" ]
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_interaction [ label="Interaction Component" ]
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{ rank=same _inertia _forceacc _interaction }
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// invisible edges to enforce left-to-right ordering
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_inertia -> _forceacc -> _interaction [ style=invis ]
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}
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// ── Physics Mechanics cluster ─────────────────────────────────────────
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subgraph cluster_physics {
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label="[1] Physics Mechanics Modules"
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fontname="Helvetica"
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fontsize=12
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fontcolor="#FFFFFF"
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style="rounded,filled"
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fillcolor="#3C3489"
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color="#AFA9EC"
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#26215C"
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color="#26215C"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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PM_mech [ label="Mechanics" ]
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PM_fluid [ label="Fluid Dynamics" ]
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PM_therm [ label="Thermodynamics" ]
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PM_em [ label="Electromagnetism" ]
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{ rank=same PM_mech PM_fluid PM_therm PM_em }
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// invisible edges to enforce left-to-right ordering
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PM_mech -> PM_fluid -> PM_therm -> PM_em [ style=invis ]
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}
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subgraph cluster_sdk {
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label="The Electrostatic-Sandbox SDK (GPLv3)"
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fontname="Helvetica"
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#000000"
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color="#000000"
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fontcolor="#FFFFFF"
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fontsize=12
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penwidth=1.2
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margin=16
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// ── Mathematical Libraries — Blue ─────────────────────────────────────
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subgraph cluster_mathlibs {
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label="[2] Mathematical Libraries"
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fontname="Helvetica"
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fontsize=12
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#0C447C"
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color="#85B7EB"
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fontcolor="#FFFFFF"
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#26215C"
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color="#26215C"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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_vectors [ label="Vector Math" ]
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_calculus [ label="Calculus" ]
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_matrix [ label="Matrix Algebra" ]
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{ rank=same _vectors _calculus _matrix }
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// invisible edges to enforce left-to-right ordering
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_vectors -> _calculus -> _matrix [ style=invis ]
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}
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// ── IO VM — Teal ──────────────────────────────────────────────────────
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subgraph cluster_vmio {
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label="[3] IO VM (VMIO)\nVirtualised IO interface — platform-agnostic dispatch"
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fontname="Helvetica"
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fontsize=12
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#085041"
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color="#5DCAA5"
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fontcolor="#FFFFFF"
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#115022"
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color="#115022"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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_analog [ label="Analog Driver" ]
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_digital [ label="Digital Driver" ]
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_comm [ label="Comm Driver" ]
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_memory [ label="Memory Driver" ]
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{ rank=same _analog _digital _comm _memory }
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// invisible edges to enforce left-to-right ordering
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_analog -> _digital -> _comm -> _memory [ style=invis ]
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}
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// ── IO Infrastructure — Coral ─────────────────────────────────────────
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subgraph cluster_io {
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label="[4] IO Infrastructure"
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fontname="Helvetica"
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fontsize=12
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#712B13"
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color="#F0997B"
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fontcolor="#FFFFFF"
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#912B13"
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color="#912B13"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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_gpio [ label="GPIO" ]
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_spi [ label="SPI" ]
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_i2c [ label="I2C" ]
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_pwm [ label="PWM" ]
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_adc [ label="ADC" ]
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_eeprom [ label="EEPROM" ]
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{ rank=same _gpio _spi _i2c _pwm _adc _eeprom }
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// invisible edges to enforce left-to-right ordering
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_gpio -> _spi -> _i2c -> _pwm -> _adc -> _eeprom [ style=invis ]
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}
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}
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// ── Platform targets — Gray ───────────────────────────────────────────
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subgraph cluster_toolchain {
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label="[5] Platform-dependent Toolchain"
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fontname="Helvetica"
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fontsize=12
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fontcolor="#CECBF6"
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style="rounded,filled"
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fillcolor="#444441"
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color="#B4B2A9"
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fontcolor="#FFFFFF"
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penwidth=1.2
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margin=16
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node [
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fontname="Helvetica"
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fontsize=11
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shape=box
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style="rounded,filled"
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fillcolor="#545451"
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color="#B4B2A9"
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fontcolor="#FFFFFF"
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penwidth=0.8
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width=1.0
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margin="0.18,0.14"
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]
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_avr [ label="AVR" ]
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_arm [ label="ARM" ]
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_x86 [ label="x86" ]
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_android [ label="Android" ]
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{ rank=same _avr _arm _x86 _android }
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// invisible edges to enforce left-to-right ordering
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_avr -> _arm -> _x86 -> _android [ style=invis ]
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}
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// ── Spine edges ───────────────────────────────────────────────────────
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_interaction -> PM_em [style=invis] [ lhead=cluster_physics ]
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PM_em -> _matrix [style=invis] [ ltail=cluster_physics ]
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_matrix -> _memory [style=invis]
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_memory -> _eeprom [style=invis]
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_eeprom -> _android [style=invis]
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}
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}

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