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20 examples14 diagram types4 clusters

Every diagram, in the wild.

20 real-world Schematex diagrams. Every one follows a published standard — copy the DSL, open in playground, ship.

genogram·§ McGoldrick 2020
Genogram: The Potter Family Genogram diagram with 10 individuals across 3 generations The Potter Family Fleamont (1909-1979) 70 Euphemia (1920-1979) 59 Mr_evans (1925) Mrs_evans (1928) James (1960-1981) 21 Lily (1960-1981) 21 Vernon (1951) Petunia (1958) Harry (1980) Dudley (1980) Fleamont (1909–1979) Euphemia (1920–1979) Mr_evans (b. 1925) Mrs_evans (b. 1928) James (1960–1981) Lily (1960–1981) Vernon (b. 1951) Petunia (b. 1958) Harry (b. 1980) Dudley (b. 1980) m. 1978
The Potter Family
Three-generation genogram with marriages, deaths, the index person, and three kinds of emotional relationships.
education
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genogram·§ McGoldrick 2020
Genogram: Smith Family Genogram diagram with 3 individuals across 2 generations Smith Family John (1975) Mary (1977) Alice (2005) John (b. 1975) Mary (b. 1977) Alice (b. 2005) m. 2002
Nuclear Family — Therapy Intake
Minimal three-person genogram — two parents and a child. Good starting template for a family therapy session.
healthcare
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genogram·§ McGoldrick 2020
Genogram: BRCA1 Family Genogram diagram with 8 individuals across 3 generations BRCA1 Family I_1 (1930-1995) 65 I_2 (1932-1990) 58 II_4 (1954) II_1 (1955) II_2 (1958) II_3 (1960) III_1 (1985) III_2 (1988) I_1 (1930–1995) I_2 (1932–1990) II_4 (b. 1954) II_1 (b. 1955) II_2 (b. 1958) II_3 (b. 1960) III_1 (b. 1985) III_2 (b. 1988)
BRCA1 Hereditary Cancer (Family)
Four-generation genogram documenting BRCA1 hereditary breast and ovarian cancer — affected individuals, deceased, proband.
healthcare
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ecomap·§ Hartman 1978
Ecomap Ecomap diagram with 9 external systems Nguyen Family IRC Office Lincoln Elementary Adult ESL Class Community Clinic Ms. Patel Vietnamese Temple Sponsor Family Warehouse Job Cousins (CA) active case twice weekly vaccinations weekly anchor housing host new, part-time phone support
Refugee Family Resettlement
Ecomap for a Vietnamese refugee family — resettlement agency, schools, clinic, temple, sponsor family, relatives abroad.
healthcare
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ecomap·§ Hartman 1978
Ecomap Ecomap diagram with 5 external systems Jordan (16) Mom & Stepdad Peer Group Soccer Coach School Counselor Part-time Cafe close weekly
Teen Client — School-Based Support
Minimal ecomap for a high-school client — family, peer group, coach, school counselor, part-time job.
healthcare
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pedigree·§ NSGC pedigree nomenclature
BRCA1 Family — Hereditary Breast/Ovarian Cancer Pedigree chart with 12 individuals across 3 generations I II III I-1 I-2 (affected) II-4 II-1 (affected) II-6 II-3 (carrier) II-2 III-1 (affected) P III-2 III-3 (presymptomatic) III-6 (carrier) III-7 I-1 I-2 II-4 II-1 II-6 II-3 II-2 III-1 III-2 III-3 III-6 III-7
BRCA1 Hereditary Cancer (Pedigree)
Clinical pedigree for BRCA1 breast and ovarian cancer — affected status, carriers, presymptomatic markers, proband arrow.
healthcare
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pedigree·§ NSGC pedigree nomenclature
Cystic Fibrosis — Autosomal Recessive Pedigree chart with 5 individuals across 2 generations I II I-1 (carrier) I-2 (carrier) II-1 (affected) P II-2 II-3 (carrier) I-1 I-2 II-1 II-2 II-3
Cystic Fibrosis — Autosomal Recessive
Classic autosomal-recessive pedigree — two unaffected carrier parents with one affected child and an unaffected sibling.
healthcare
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phylo·§ Newick / NHX
Phylogenetic Tree: Bacterial Diversity Phylogenetic tree with 10 taxa, phylogram mode, rectangular layout Bacterial Diversity Ecoli Salmonella Vibrio Bacillus Staph Listeria Myco_tb Myco_leprae Strepto Lactobacillus 98 85 92 100 78 0.2 substitutions/site
Bacterial Diversity
Ten-taxon bacterial phylogenetic tree with NHX bootstrap support values and three color-coded clades.
research
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sociogram·§ Moreno 1934
Sociogram: Playground Dynamics Sociogram with 8 members and 10 connections Playground Dynamics conflict tom jack mike leo anna beth chloe diana
Classroom Playground Dynamics
Classroom sociogram with boys and girls subgroups, mutual friendships, a conflict edge, and neutral cross-group links.
education
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sociogram·§ Moreno 1934
Sociogram: Engineering Team — Advice Network Sociogram with 7 members and 8 connections Engineering Team — Advice Network friction maya raj sam lee kim nora theo
Workplace Influence Map
Informal influence network across an engineering team — who goes to whom for advice, who is isolated, who is the hub.
business
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timing·§ WaveDrom / IEEE 1497
SPI transaction Digital timing diagram with 4 signals CLK CS_N MOSI MISO SPI transaction
SPI Transaction Timing
Four-signal SPI bus waveform — clock, chip-select, and MOSI/MISO data — in WaveDrom-compatible notation.
industrial
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logic·§ IEEE 91 / IEC 60617
Full Adder Logic gate diagram with 5 gates, 3 inputs, 2 outputs XOR AND XOR AND OR A B Cin S Cout Full Adder
1-Bit Full Adder
Gate-level schematic of a 1-bit full adder — two XOR, two AND, one OR — rendered from a five-line netlist.
education
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circuit·§ IEEE 315 / ANSI Y32.2
CE Amp (netlist) Circuit schematic with 6 components CE Amp (netlist) +−V19VRc2.2kRb100kQ1Re1k
NPN Common-Emitter Amplifier
Canonical NPN common-emitter BJT amplifier rendered from a five-line SPICE netlist with auto-routed rails.
education
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ladder·§ IEC 61131-3
Motor Start/Stop PLC ladder logic diagram with 1 rung Motor Start/Stop Rung 001 — Seal-in circuit — Start Button START_PB IN 1.0 Aux Contact MOTOR_AUX BIT 3.0 Stop Button STOP_PB IN 1.1 Motor Command MOTOR_CMD OUT 2.0
Motor Start/Stop Seal-in
The canonical three-wire motor start/stop ladder logic with seal-in contact — taught in every automation course.
industrial
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ladder·§ IEC 61131-3
System Mode Selection PLC ladder logic diagram with 2 rungs System Mode Selection Rung 001 — Set system Auto mode, reset Manual — Rung 002 — Set Manual, reset Auto (with Home seal-in) — Auto Mode HMI Pushbutton AUTO_HMIPB BIT 5.10 Manual Mode HMI Pushbutton MANL_HMIPB BIT 5.11 System Fault SYS_FAULT BIT 3.0 S System Auto Mode SYS_AUTO BIT 3.1 R System Manual Mode SYS_MANUAL BIT 3.2 Manual Mode HMI Pushbutton MANL_HMIPB BIT 5.11 System Home Command SYS_HOMECMD BIT 3.5 Auto Mode HMI Pushbutton AUTO_HMIPB BIT 5.10 System Fault SYS_FAULT BIT 3.0 S System Manual Mode SYS_MANUAL BIT 3.2 R System Auto Mode SYS_AUTO BIT 3.1
System Mode Selection (Auto/Manual)
Three-rung PLC program with Set/Reset coils on parallel output branches and nested serial/parallel interlock blocks.
industrial
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sld·§ IEEE 315
13.8 kV Substation Single-line diagram with 10 nodes and 9 connections 13.8 kV Substation 138kV 138kV 13.8kV Grid 138kV 138kV 138kV · 138kV Bus TX1 15MVA, 138/13.8kV id: TX-1 13.8kV · 13.8kV Bus CB1 1200A CB2 1200A CB3 1200A M Feeder 1 M Feeder 2 M Feeder 3
13.8 kV Utility Substation
Utility one-line: 138 kV grid source → 15 MVA step-down transformer → 13.8 kV medium-voltage bus → three feeder breakers.
industrial
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entity·§ Tier-based ownership
Acme Holdings Entity structure diagram with 4 entities and 3 relationships Acme Holdings 100% 100% 60% US Founder Trust Trust DE Acme Inc. Corporation UK Acme UK Ltd. Corporation KY Acme Growth Fund LP LP / Fund
Multi-Jurisdiction Holding
Delaware C-corp parent, UK operating subsidiary, Cayman fund, and South Dakota dynasty trust — typical M&A/tax structure.
legal & finance
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entity·§ Tier-based ownership
Acme Robotics — Post Series A Entity structure diagram with 5 entities and 4 relationships Acme Robotics — Post Series A 45% 15% 15% 25% Founders (2) ESOP Pool Reserved Pool KY Seed Fund LP / Fund KY Series A Lead LP / Fund DE Acme Robotics Inc. Corporation
Series A Cap Table
Post-Series A ownership — founders, ESOP pool, seed investor, and lead Series A fund rolled up into a single Delaware C-corp.
legal & finance
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block·§ Ogata control systems
PID loop Block diagram with 2 blocks, 1 summing junctions, 5 signals PID loop r + + C(s) G(s) in
PID Control Loop
Classic single-input single-output feedback control loop — reference, error summer, controller C(s), plant G(s), unity feedback.
industrial
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fishbone·§ Ishikawa 1968
Fishbone diagram — Website traffic drop — Fishbone diagram Ishikawa cause-and-effect diagram. Effect: Traffic decline. 6 categories. Fishbone diagram — Website traffic drop Traffic decline Content Publishing frequency down Content too generic Keyword gaps Low-quality AI content Backlinks High-quality backlinks lost High ratio of low-quality links Referring domain growth stalled Low anchor text diversity Competition New competitors entering AI tools replacing search Weakening brand recall Competitors publishing faster Technical Core Web Vitals failing Crawl coverage drop Crawler blocked by WAF Missing structured data UX Bounce rate rising Poor mobile experience Slow above-fold load Excessive popup ads Algorithm Core Update penalty Weak E-E-A-T signals AI Overviews / SGE cutoff Search intent drift
Website Traffic Drop RCA
Six-category Ishikawa diagram for an organic-traffic drop — Content, Technical, Backlinks, UX, Competition, Algorithm — 24 causes.
business
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