LIBRARY
Logical.Tests.ZeroThresholds
MSL cross-validation: ModelicaTest.Blocks.ZeroThresholds
Mirrors the MSL test exactly. A ramp (1 → 0 over 0.2 s starting at t=0.3) feeds through two limiter paths:
Positive path: Limiter(y_min=0) → GreaterThreshold(0), GreaterEqualThreshold(0)
Negative path: Gain(k=-1) → Limiter(y_max=0) → LessThreshold(0), LessEqualThreshold(0)
Verifies that threshold comparisons at zero behave correctly when the input signal is clamped to exactly zero by the limiter.
Usage
BlockComponents.Logical.Tests.ZeroThresholds()
Behavior
Source
dyad
"""
MSL cross-validation: ModelicaTest.Blocks.ZeroThresholds
Mirrors the MSL test exactly. A ramp (1 → 0 over 0.2 s starting at t=0.3)
feeds through two limiter paths:
- Positive path: Limiter(y_min=0) → GreaterThreshold(0), GreaterEqualThreshold(0)
- Negative path: Gain(k=-1) → Limiter(y_max=0) → LessThreshold(0), LessEqualThreshold(0)
Verifies that threshold comparisons at zero behave correctly when the input
signal is clamped to exactly zero by the limiter.
"""
test component ZeroThresholds
ramp = BlockComponents.Sources.Ramp(duration = 0.2, height = -1.0, offset = 1.0, start_time = 0.3) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 20, "y1": 20, "x2": 120, "y2": 120, "rot": 0}
},
"tags": []
}
}
gain = BlockComponents.Math.Gain(k = -1) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 160, "y1": 20, "x2": 260, "y2": 120, "rot": 0}
},
"tags": []
}
}
limiter_min_zero = BlockComponents.Nonlinear.Limiter(y_max = 1e5, y_min = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 160, "y1": 140, "x2": 260, "y2": 240, "rot": 0}
},
"tags": []
}
}
limiter_max_zero = BlockComponents.Nonlinear.Limiter(y_max = 0.0, y_min = -1e5) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 300.5, "y1": 20, "x2": 400.5, "y2": 120, "rot": 0}
},
"tags": []
}
}
greater_threshold = BlockComponents.Logical.GreaterThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 301, "y1": 140, "x2": 401, "y2": 240, "rot": 0}
},
"tags": []
}
}
greater_equal_threshold = BlockComponents.Logical.GreaterEqualThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 301, "y1": 260, "x2": 401, "y2": 360, "rot": 0}
},
"tags": []
}
}
less_threshold = BlockComponents.Logical.LessThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 442, "y1": 140, "x2": 542, "y2": 240, "rot": 0}
},
"tags": []
}
}
less_equal_threshold = BlockComponents.Logical.LessEqualThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 450, "y1": 20, "x2": 550, "y2": 120, "rot": 0}
},
"tags": []
}
}
relations
connect(ramp.y, limiter_min_zero.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 140, "y": 190}], "E": 2}],
"junctions": [{"x": 140, "y": 70}],
"renderStyle": "standard"
}
}
connect(ramp.y, gain.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(gain.y, limiter_max_zero.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(limiter_min_zero.y, greater_threshold.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(limiter_min_zero.y, greater_equal_threshold.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 280, "y": 310}], "E": 2}],
"junctions": [{"x": 280, "y": 190}],
"renderStyle": "standard"
}
}
connect(limiter_max_zero.y, less_threshold.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 421, "y": 190}], "E": 2}],
"junctions": [{"x": 421, "y": 70}],
"renderStyle": "standard"
}
}
connect(limiter_max_zero.y, less_equal_threshold.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
metadata {
"Dyad": {
"icons": {"default": "dyad://BlockComponents/Example.svg"},
"tests": {
"case1": {
"stop": 1,
"expect": {
"signals": [
"ramp.y",
"limiter_min_zero.y",
"limiter_max_zero.y",
"greater_threshold.y",
"greater_equal_threshold.y",
"less_threshold.y",
"less_equal_threshold.y"
]
}
}
}
}
}
endFlattened Source
dyad
"""
MSL cross-validation: ModelicaTest.Blocks.ZeroThresholds
Mirrors the MSL test exactly. A ramp (1 → 0 over 0.2 s starting at t=0.3)
feeds through two limiter paths:
- Positive path: Limiter(y_min=0) → GreaterThreshold(0), GreaterEqualThreshold(0)
- Negative path: Gain(k=-1) → Limiter(y_max=0) → LessThreshold(0), LessEqualThreshold(0)
Verifies that threshold comparisons at zero behave correctly when the input
signal is clamped to exactly zero by the limiter.
"""
test component ZeroThresholds
ramp = BlockComponents.Sources.Ramp(duration = 0.2, height = -1.0, offset = 1.0, start_time = 0.3) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 20, "y1": 20, "x2": 120, "y2": 120, "rot": 0}
},
"tags": []
}
}
gain = BlockComponents.Math.Gain(k = -1) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 160, "y1": 20, "x2": 260, "y2": 120, "rot": 0}
},
"tags": []
}
}
limiter_min_zero = BlockComponents.Nonlinear.Limiter(y_max = 1e5, y_min = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 160, "y1": 140, "x2": 260, "y2": 240, "rot": 0}
},
"tags": []
}
}
limiter_max_zero = BlockComponents.Nonlinear.Limiter(y_max = 0.0, y_min = -1e5) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 300.5, "y1": 20, "x2": 400.5, "y2": 120, "rot": 0}
},
"tags": []
}
}
greater_threshold = BlockComponents.Logical.GreaterThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 301, "y1": 140, "x2": 401, "y2": 240, "rot": 0}
},
"tags": []
}
}
greater_equal_threshold = BlockComponents.Logical.GreaterEqualThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 301, "y1": 260, "x2": 401, "y2": 360, "rot": 0}
},
"tags": []
}
}
less_threshold = BlockComponents.Logical.LessThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 442, "y1": 140, "x2": 542, "y2": 240, "rot": 0}
},
"tags": []
}
}
less_equal_threshold = BlockComponents.Logical.LessEqualThreshold(threshold = 0.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 450, "y1": 20, "x2": 550, "y2": 120, "rot": 0}
},
"tags": []
}
}
relations
connect(ramp.y, limiter_min_zero.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 140, "y": 190}], "E": 2}],
"junctions": [{"x": 140, "y": 70}],
"renderStyle": "standard"
}
}
connect(ramp.y, gain.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(gain.y, limiter_max_zero.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(limiter_min_zero.y, greater_threshold.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(limiter_min_zero.y, greater_equal_threshold.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 280, "y": 310}], "E": 2}],
"junctions": [{"x": 280, "y": 190}],
"renderStyle": "standard"
}
}
connect(limiter_max_zero.y, less_threshold.u) {
"Dyad": {
"edges": [{"S": 1, "M": [], "E": -1}, {"S": -1, "M": [{"x": 421, "y": 190}], "E": 2}],
"junctions": [{"x": 421, "y": 70}],
"renderStyle": "standard"
}
}
connect(limiter_max_zero.y, less_equal_threshold.u) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
metadata {
"Dyad": {
"icons": {"default": "dyad://BlockComponents/Example.svg"},
"tests": {
"case1": {
"stop": 1,
"expect": {
"signals": [
"ramp.y",
"limiter_min_zero.y",
"limiter_max_zero.y",
"greater_threshold.y",
"greater_equal_threshold.y",
"less_threshold.y",
"less_equal_threshold.y"
]
}
}
}
}
}
endTest Cases
Test Case case1
julia
plt
julia
plt
julia
plt
julia
plt
julia
plt
julia
plt
julia
plt
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